diff --git a/app/assets/javascripts/admin/controllers/admin-dashboard-reports.js.es6 b/app/assets/javascripts/admin/controllers/admin-dashboard-reports.js.es6
index 9a57b9cf326..d6e15496f76 100644
--- a/app/assets/javascripts/admin/controllers/admin-dashboard-reports.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-dashboard-reports.js.es6
@@ -1,6 +1,7 @@
 import discourseComputed from "discourse-common/utils/decorators";
 import { debounce } from "@ember/runloop";
 import Controller from "@ember/controller";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 const { get } = Ember;
 
@@ -23,7 +24,7 @@ export default Controller.extend({
 
   actions: {
     filterReports(filter) {
-      debounce(this, this._performFiltering, filter, 250);
+      debounce(this, this._performFiltering, filter, INPUT_DELAY);
     }
   },
 
diff --git a/app/assets/javascripts/admin/controllers/admin-email-bounced.js.es6 b/app/assets/javascripts/admin/controllers/admin-email-bounced.js.es6
index 508bc559c57..bc034db4f71 100644
--- a/app/assets/javascripts/admin/controllers/admin-email-bounced.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-email-bounced.js.es6
@@ -1,10 +1,11 @@
 import AdminEmailLogsController from "admin/controllers/admin-email-logs";
 import discourseDebounce from "discourse/lib/debounce";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default AdminEmailLogsController.extend({
   @observes("filter.{status,user,address,type}")
   filterEmailLogs: discourseDebounce(function() {
     this.loadLogs();
-  }, 250)
+  }, INPUT_DELAY)
 });
diff --git a/app/assets/javascripts/admin/controllers/admin-email-received.js.es6 b/app/assets/javascripts/admin/controllers/admin-email-received.js.es6
index 4a3cc363dfe..0942a3dabf6 100644
--- a/app/assets/javascripts/admin/controllers/admin-email-received.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-email-received.js.es6
@@ -2,12 +2,13 @@ import AdminEmailLogsController from "admin/controllers/admin-email-logs";
 import discourseDebounce from "discourse/lib/debounce";
 import IncomingEmail from "admin/models/incoming-email";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default AdminEmailLogsController.extend({
   @observes("filter.{status,from,to,subject}")
   filterIncomingEmails: discourseDebounce(function() {
     this.loadLogs(IncomingEmail);
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     loadMore() {
diff --git a/app/assets/javascripts/admin/controllers/admin-email-rejected.js.es6 b/app/assets/javascripts/admin/controllers/admin-email-rejected.js.es6
index 8c6f6767f4f..01882482e78 100644
--- a/app/assets/javascripts/admin/controllers/admin-email-rejected.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-email-rejected.js.es6
@@ -2,12 +2,13 @@ import AdminEmailLogsController from "admin/controllers/admin-email-logs";
 import discourseDebounce from "discourse/lib/debounce";
 import IncomingEmail from "admin/models/incoming-email";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default AdminEmailLogsController.extend({
   @observes("filter.{status,from,to,subject,error}")
   filterIncomingEmails: discourseDebounce(function() {
     this.loadLogs(IncomingEmail);
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     loadMore() {
diff --git a/app/assets/javascripts/admin/controllers/admin-email-sent.js.es6 b/app/assets/javascripts/admin/controllers/admin-email-sent.js.es6
index f727c9d6f44..b76fcf81dc0 100644
--- a/app/assets/javascripts/admin/controllers/admin-email-sent.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-email-sent.js.es6
@@ -1,10 +1,11 @@
 import AdminEmailLogsController from "admin/controllers/admin-email-logs";
 import discourseDebounce from "discourse/lib/debounce";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default AdminEmailLogsController.extend({
   @observes("filter.{status,user,address,type,reply_key}")
   filterEmailLogs: discourseDebounce(function() {
     this.loadLogs();
-  }, 250)
+  }, INPUT_DELAY)
 });
diff --git a/app/assets/javascripts/admin/controllers/admin-email-skipped.js.es6 b/app/assets/javascripts/admin/controllers/admin-email-skipped.js.es6
index 508bc559c57..bc034db4f71 100644
--- a/app/assets/javascripts/admin/controllers/admin-email-skipped.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-email-skipped.js.es6
@@ -1,10 +1,11 @@
 import AdminEmailLogsController from "admin/controllers/admin-email-logs";
 import discourseDebounce from "discourse/lib/debounce";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default AdminEmailLogsController.extend({
   @observes("filter.{status,user,address,type}")
   filterEmailLogs: discourseDebounce(function() {
     this.loadLogs();
-  }, 250)
+  }, INPUT_DELAY)
 });
diff --git a/app/assets/javascripts/admin/controllers/admin-logs-screened-ip-addresses.js.es6 b/app/assets/javascripts/admin/controllers/admin-logs-screened-ip-addresses.js.es6
index baee177c02f..789f070db18 100644
--- a/app/assets/javascripts/admin/controllers/admin-logs-screened-ip-addresses.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-logs-screened-ip-addresses.js.es6
@@ -4,6 +4,7 @@ import { outputExportResult } from "discourse/lib/export-result";
 import { exportEntity } from "discourse/lib/export-csv";
 import ScreenedIpAddress from "admin/models/screened-ip-address";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend({
   loading: false,
@@ -16,7 +17,7 @@ export default Controller.extend({
     ScreenedIpAddress.findAll(this.filter).then(result => {
       this.setProperties({ model: result, loading: false });
     });
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     allow(record) {
diff --git a/app/assets/javascripts/admin/controllers/admin-permalinks.js.es6 b/app/assets/javascripts/admin/controllers/admin-permalinks.js.es6
index a45f8cc89ad..6f0842049c0 100644
--- a/app/assets/javascripts/admin/controllers/admin-permalinks.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-permalinks.js.es6
@@ -2,6 +2,7 @@ import Controller from "@ember/controller";
 import discourseDebounce from "discourse/lib/debounce";
 import Permalink from "admin/models/permalink";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend({
   loading: false,
@@ -13,7 +14,7 @@ export default Controller.extend({
       this.set("model", result);
       this.set("loading", false);
     });
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     recordAdded(arg) {
diff --git a/app/assets/javascripts/admin/controllers/admin-site-settings.js.es6 b/app/assets/javascripts/admin/controllers/admin-site-settings.js.es6
index 28721de995f..ac84553a71c 100644
--- a/app/assets/javascripts/admin/controllers/admin-site-settings.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-site-settings.js.es6
@@ -3,6 +3,7 @@ import { alias } from "@ember/object/computed";
 import Controller from "@ember/controller";
 import discourseDebounce from "discourse/lib/debounce";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend({
   filter: null,
@@ -84,7 +85,7 @@ export default Controller.extend({
     } else {
       this.filterContentNow();
     }
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     clearFilter() {
diff --git a/app/assets/javascripts/admin/controllers/admin-users-list-show.js.es6 b/app/assets/javascripts/admin/controllers/admin-users-list-show.js.es6
index 8776fee466f..8b7adb194ce 100644
--- a/app/assets/javascripts/admin/controllers/admin-users-list-show.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-users-list-show.js.es6
@@ -4,6 +4,7 @@ import discourseDebounce from "discourse/lib/debounce";
 import { i18n } from "discourse/lib/computed";
 import AdminUser from "admin/models/admin-user";
 import CanCheckEmails from "discourse/mixins/can-check-emails";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend(CanCheckEmails, {
   model: null,
@@ -32,7 +33,7 @@ export default Controller.extend(CanCheckEmails, {
   @observes("listFilter")
   _filterUsers: discourseDebounce(function() {
     this.resetFilters();
-  }, 250),
+  }, INPUT_DELAY),
 
   resetFilters() {
     this._page = 1;
diff --git a/app/assets/javascripts/admin/controllers/admin-watched-words.js.es6 b/app/assets/javascripts/admin/controllers/admin-watched-words.js.es6
index dbc2afe1dc8..636358c629c 100644
--- a/app/assets/javascripts/admin/controllers/admin-watched-words.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-watched-words.js.es6
@@ -4,6 +4,7 @@ import EmberObject from "@ember/object";
 import Controller from "@ember/controller";
 import discourseDebounce from "discourse/lib/debounce";
 import { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend({
   filter: null,
@@ -48,7 +49,7 @@ export default Controller.extend({
   filterContent: discourseDebounce(function() {
     this.filterContentNow();
     this.set("filtered", !isEmpty(this.filter));
-  }, 250),
+  }, INPUT_DELAY),
 
   actions: {
     clearFilter() {
diff --git a/app/assets/javascripts/discourse-common/config/environment.js.es6 b/app/assets/javascripts/discourse-common/config/environment.js.es6
index 3bfa2c38c58..18ce3cc9768 100644
--- a/app/assets/javascripts/discourse-common/config/environment.js.es6
+++ b/app/assets/javascripts/discourse-common/config/environment.js.es6
@@ -1 +1,3 @@
+export const INPUT_DELAY = 250;
+
 export default { environment: Ember.testing ? "test" : "development" };
diff --git a/app/assets/javascripts/discourse/components/emoji-picker.js.es6 b/app/assets/javascripts/discourse/components/emoji-picker.js.es6
index fccf3c597f3..2696ca1358e 100644
--- a/app/assets/javascripts/discourse/components/emoji-picker.js.es6
+++ b/app/assets/javascripts/discourse/components/emoji-picker.js.es6
@@ -9,7 +9,7 @@ import {
   emojiSearch
 } from "pretty-text/emoji";
 import { safariHacksDisabled } from "discourse/lib/utilities";
-import ENV from "discourse-common/config/environment";
+import ENV, { INPUT_DELAY } from "discourse-common/config/environment";
 
 const { run } = Ember;
 
@@ -94,7 +94,7 @@ export default Component.extend({
   @observes("filter")
   filterChanged() {
     this.$filter.find(".clear-filter").toggle(!_.isEmpty(this.filter));
-    const filterDelay = this.site.isMobileDevice ? 400 : 250;
+    const filterDelay = this.site.isMobileDevice ? 400 : INPUT_DELAY;
     run.debounce(this, this._filterEmojisList, filterDelay);
   },
 
diff --git a/app/assets/javascripts/discourse/components/quote-button.js.es6 b/app/assets/javascripts/discourse/components/quote-button.js.es6
index 2d8df37706d..141d9f32ac8 100644
--- a/app/assets/javascripts/discourse/components/quote-button.js.es6
+++ b/app/assets/javascripts/discourse/components/quote-button.js.es6
@@ -2,6 +2,7 @@ import { scheduleOnce } from "@ember/runloop";
 import Component from "@ember/component";
 import discourseDebounce from "discourse/lib/debounce";
 import { selectedText, selectedElement } from "discourse/lib/utilities";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 function getQuoteTitle(element) {
   const titleEl = element.querySelector(".title");
@@ -146,7 +147,7 @@ export default Component.extend({
 
   didInsertElement() {
     const { isWinphone, isAndroid } = this.capabilities;
-    const wait = isWinphone || isAndroid ? 250 : 25;
+    const wait = isWinphone || isAndroid ? INPUT_DELAY : 25;
     const onSelectionChanged = discourseDebounce(
       () => this._selectionChanged(),
       wait
diff --git a/app/assets/javascripts/discourse/components/search-advanced-options.js.es6 b/app/assets/javascripts/discourse/components/search-advanced-options.js.es6
index 9b3bac5035b..136c416588e 100644
--- a/app/assets/javascripts/discourse/components/search-advanced-options.js.es6
+++ b/app/assets/javascripts/discourse/components/search-advanced-options.js.es6
@@ -5,6 +5,7 @@ import { escapeExpression } from "discourse/lib/utilities";
 import Group from "discourse/models/group";
 import Badge from "discourse/models/badge";
 import Category from "discourse/models/category";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 const REGEXP_BLOCKS = /(([^" \t\n\x0B\f\r]+)?(("[^"]+")?))/g;
 
@@ -82,7 +83,7 @@ export default Component.extend({
   @observes("searchTerm")
   _updateOptions() {
     this._update();
-    debounce(this, this._update, 250);
+    debounce(this, this._update, INPUT_DELAY);
   },
 
   _init() {
diff --git a/app/assets/javascripts/discourse/controllers/user-invited-show.js.es6 b/app/assets/javascripts/discourse/controllers/user-invited-show.js.es6
index 9282265e784..0b8c07d0fb6 100644
--- a/app/assets/javascripts/discourse/controllers/user-invited-show.js.es6
+++ b/app/assets/javascripts/discourse/controllers/user-invited-show.js.es6
@@ -4,6 +4,7 @@ import Invite from "discourse/models/invite";
 import discourseDebounce from "discourse/lib/debounce";
 import { popupAjaxError } from "discourse/lib/ajax-error";
 import discourseComputed, { observes } from "discourse-common/utils/decorators";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Controller.extend({
   user: null,
@@ -30,7 +31,7 @@ export default Controller.extend({
       this.filter,
       this.searchTerm
     ).then(invites => this.set("model", invites));
-  }, 250),
+  }, INPUT_DELAY),
 
   inviteRedeemed: equal("filter", "redeemed"),
 
diff --git a/app/assets/javascripts/discourse/lib/keyboard-shortcuts.js.es6 b/app/assets/javascripts/discourse/lib/keyboard-shortcuts.js.es6
index 69f42cfee16..59840f2b4d7 100644
--- a/app/assets/javascripts/discourse/lib/keyboard-shortcuts.js.es6
+++ b/app/assets/javascripts/discourse/lib/keyboard-shortcuts.js.es6
@@ -4,6 +4,7 @@ import Composer from "discourse/models/composer";
 import { minimumOffset } from "discourse/lib/offset-calculator";
 import { ajax } from "discourse/lib/ajax";
 import { throttle } from "@ember/runloop";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 const bindings = {
   "!": { postAction: "showFlags" },
@@ -299,19 +300,19 @@ export default {
   },
 
   setTrackingToMuted(event) {
-    throttle(this, "_setTracking", { id: 0, event }, 250, true);
+    throttle(this, "_setTracking", { id: 0, event }, INPUT_DELAY, true);
   },
 
   setTrackingToRegular(event) {
-    throttle(this, "_setTracking", { id: 1, event }, 250, true);
+    throttle(this, "_setTracking", { id: 1, event }, INPUT_DELAY, true);
   },
 
   setTrackingToTracking(event) {
-    throttle(this, "_setTracking", { id: 2, event }, 250, true);
+    throttle(this, "_setTracking", { id: 2, event }, INPUT_DELAY, true);
   },
 
   setTrackingToWatching(event) {
-    throttle(this, "_setTracking", { id: 3, event }, 250, true);
+    throttle(this, "_setTracking", { id: 3, event }, INPUT_DELAY, true);
   },
 
   _setTracking(params) {
diff --git a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6 b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
index 799d3c904c2..40d8ee4637d 100644
--- a/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
+++ b/app/assets/javascripts/discourse/lib/safari-hacks.js.es6
@@ -4,6 +4,7 @@ import {
   safariHacksDisabled,
   iOSWithVisualViewport
 } from "discourse/lib/utilities";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 // TODO: remove calcHeight once iOS 13 adoption > 90%
 // In iOS 13 and up we use visualViewport API to calculate height
@@ -136,7 +137,7 @@ function positioningWorkaround($fixedElement) {
     positioningWorkaround.blur(evt);
   };
 
-  var blurred = discourseDebounce(blurredNow, 250);
+  var blurred = discourseDebounce(blurredNow, INPUT_DELAY);
 
   var positioningHack = function(evt) {
     // we need this, otherwise changing focus means we never clear
diff --git a/plugins/discourse-local-dates/assets/javascripts/discourse/components/discourse-local-dates-create-form.js.es6 b/plugins/discourse-local-dates/assets/javascripts/discourse/components/discourse-local-dates-create-form.js.es6
index 374aacad939..df092d9a898 100644
--- a/plugins/discourse-local-dates/assets/javascripts/discourse/components/discourse-local-dates-create-form.js.es6
+++ b/plugins/discourse-local-dates/assets/javascripts/discourse/components/discourse-local-dates-create-form.js.es6
@@ -10,6 +10,7 @@ import loadScript from "discourse/lib/load-script";
 import computed, { observes } from "discourse-common/utils/decorators";
 import { cookAsync } from "discourse/lib/text";
 import discourseDebounce from "discourse/lib/debounce";
+import { INPUT_DELAY } from "discourse-common/config/environment";
 
 export default Component.extend({
   timeFormat: "HH:mm:ss",
@@ -66,7 +67,7 @@ export default Component.extend({
         );
       });
     }
-  }, 250),
+  }, INPUT_DELAY),
 
   @computed("date", "toDate", "toTime")
   isRange(date, toDate, toTime) {