diff --git a/packages/richtext-lexical/src/field/Field.tsx b/packages/richtext-lexical/src/field/Field.tsx
index 65edb6ede58..cc73bb3e49c 100644
--- a/packages/richtext-lexical/src/field/Field.tsx
+++ b/packages/richtext-lexical/src/field/Field.tsx
@@ -12,7 +12,7 @@ import {
   useField,
 } from '@payloadcms/ui'
 import { mergeFieldStyles } from '@payloadcms/ui/shared'
-import React, { useCallback, useEffect, useMemo, useState } from 'react'
+import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { ErrorBoundary } from 'react-error-boundary'
 
 import type { SanitizedClientEditorConfig } from '../lexical/config/types.js'
@@ -117,6 +117,8 @@ const RichTextComponent: React.FC<
 
   const pathWithEditDepth = `${path}.${editDepth}`
 
+  const dispatchFieldUpdateTask = useRef<number>(undefined)
+
   const updateFieldValue = (editorState: EditorState) => {
     const newState = editorState.toJSON()
     prevValueRef.current = newState
@@ -126,7 +128,19 @@ const RichTextComponent: React.FC<
   const handleChange = useCallback(
     (editorState: EditorState) => {
       if (typeof window.requestIdleCallback === 'function') {
-        requestIdleCallback(() => updateFieldValue(editorState))
+        // Cancel earlier scheduled value updates,
+        // so that a CPU-limited event loop isn't flooded with n callbacks for n keystrokes into the rich text field,
+        // but that there's only ever the latest one state update
+        // dispatch task, to be executed with the next idle time,
+        // or the deadline of 500ms.
+        if (typeof window.cancelIdleCallback === 'function' && dispatchFieldUpdateTask.current) {
+          cancelIdleCallback(dispatchFieldUpdateTask.current)
+        }
+        // Schedule the state update to happen the next time the browser has sufficient resources,
+        // or the latest after 500ms.
+        dispatchFieldUpdateTask.current = requestIdleCallback(() => updateFieldValue(editorState), {
+          timeout: 500,
+        })
       } else {
         updateFieldValue(editorState)
       }