diff --git a/data/schema.json b/data/schema.json
index 287b1236c84..52b99173515 100644
--- a/data/schema.json
+++ b/data/schema.json
@@ -532,9 +532,15 @@
     "coc.preferences.currentFunctionSymbolAutoUpdate": {
       "type": "boolean",
       "scope": "language-overridable",
-      "description": "Automatically update the value of b:coc_current_function on CursorHold event",
+      "description": "Automatically update the value of b:coc_current_function on CursorMove event",
       "default": false
     },
+    "coc.preferences.currentFunctionSymbolDebounceTime": {
+      "type": "number",
+      "scope": "language-overridable",
+      "description": "Set debounce timer for the update of b:coc_current_function on CursorMove event",
+      "default": 300
+    },
     "coc.preferences.enableLinkedEditing": {
       "type": "boolean",
       "scope": "language-overridable",
diff --git a/doc/coc-config.txt b/doc/coc-config.txt
index 4d4dcbfdf13..53ace94fbed 100644
--- a/doc/coc-config.txt
+++ b/doc/coc-config.txt
@@ -1520,11 +1520,18 @@ Preferences~
 
 "coc.preferences.currentFunctionSymbolAutoUpdate"	*coc-preferences-currentFunctionSymbolAutoUpdate*
 
-	Automatically update the value of b:coc_current_function on CursorHold
+	Automatically update the value of b:coc_current_function on CursorMove
 	event
 
 	Scope: `language-overridable`, default: `false`
 
+"coc.preferences.currentFunctionSymbolDebounceTime"	*coc-preferences-currentFunctionSymbolDebounceTime*
+
+	Set debounce timer for the update of b:coc_current_function on CursorMove
+	event
+
+	Scope: `language-overridable`, default: `300`
+
 "coc.preferences.enableLinkedEditing"			*coc-preferences-enableLinkedEditing*
 
 	Enable linked editing support.
diff --git a/doc/coc.txt b/doc/coc.txt
index 701a909b3a2..ee91f057779 100644
--- a/doc/coc.txt
+++ b/doc/coc.txt
@@ -1997,7 +1997,8 @@ b:coc_current_function					*b:coc_current_function*
 	Function string that current cursor in.
 
 	Enable |coc-preferences-currentFunctionSymbolAutoUpdate| to update the
-	value on CursorHold.
+	value on CursorMove and use |coc-preferences-currentFunctionSymbolDebounceTime|
+	to set the time to debounce the event.
 
 b:coc_cursors_activated					*b:coc_cursors_activated*
 
diff --git a/src/handler/symbols/index.ts b/src/handler/symbols/index.ts
index fb92809c980..462a8b9e2e2 100644
--- a/src/handler/symbols/index.ts
+++ b/src/handler/symbols/index.ts
@@ -17,8 +17,6 @@ import SymbolsBuffer from './buffer'
 import Outline from './outline'
 import { convertSymbols, SymbolInfo } from './util'
 
-const CURSORMOVE_DEBOUNCE = getConditionValue(300, 0)
-
 export default class Symbols {
   private buffers: BufferSync<SymbolsBuffer>
   private disposables: Disposable[] = []
@@ -48,7 +46,7 @@ export default class Symbols {
       let buffer = nvim.createBuffer(bufnr)
       buffer.setVar('coc_current_function', func ?? '', true)
       this.nvim.call('coc#util#do_autocmd', ['CocStatusChange'], true)
-    }, CURSORMOVE_DEBOUNCE)
+    }, this.debounceTime())
     events.on('CursorMoved', debounced, this, this.disposables)
     this.disposables.push(Disposable.create(() => {
       debounced.clear()
@@ -65,6 +63,11 @@ export default class Symbols {
     return config.get<boolean>('currentFunctionSymbolAutoUpdate', false)
   }
 
+  public debounceTime(): number {
+    let config = workspace.getConfiguration('coc.preferences')
+    return getConditionValue(config.get<number>('currentFunctionSymbolDebounceTime', 300), 0)
+  }
+
   public get labels(): { [key: string]: string } {
     return workspace.getConfiguration('suggest').get<any>('completionItemKindLabels', {})
   }