diff --git a/src/config/i18n.js b/src/config/i18n.js
index 5ed7ab9..86ea45c 100644
--- a/src/config/i18n.js
+++ b/src/config/i18n.js
@@ -167,6 +167,10 @@ export const I18N = {
     zh: `请求间隔时间 (0-5000ms)`,
     en: `Request Interval (0-5000ms)`,
   },
+  translate_interval: {
+    zh: `翻译间隔时间 (100-5000ms)`,
+    en: `Translate Interval (100-5000ms)`,
+  },
   min_translate_length: {
     zh: `最小翻译长度 (1-100)`,
     en: `Min Translate Length (1-100)`,
diff --git a/src/libs/translator.js b/src/libs/translator.js
index 6863f7b..ca00a24 100644
--- a/src/libs/translator.js
+++ b/src/libs/translator.js
@@ -430,10 +430,13 @@ export class Translator {
 
   _reTranslate = debounce(() => {
     if (this._rule.transOpen === "true") {
+      window.removeEventListener("keydown", this._handleKeydown);
+      this._mutaObserver.disconnect();
+      this._interseObserver.disconnect();
       this._removeInjector();
       this._register();
     }
-  }, 500);
+  }, this._setting.transInterval);
 
   _invalidLength = (q) =>
     !q ||
diff --git a/src/views/Options/Setting.js b/src/views/Options/Setting.js
index d75dfa9..822cb6b 100644
--- a/src/views/Options/Setting.js
+++ b/src/views/Options/Setting.js
@@ -52,6 +52,9 @@ export default function Settings() {
       case "fetchInterval":
         value = limitNumber(value, 0, 5000);
         break;
+      case "transInterval":
+        value = limitNumber(value, 100, 5000);
+        break;
       case "minLength":
         value = limitNumber(value, 1, 100);
         break;
@@ -94,6 +97,7 @@ export default function Settings() {
     contextMenuType = 1,
     touchTranslate = 2,
     blacklist = DEFAULT_BLACKLIST.join(",\n"),
+    transInterval = 500,
   } = setting;
   const { isHide = false } = fab || {};
 
@@ -134,6 +138,15 @@ export default function Settings() {
           onChange={handleChange}
         />
 
+        <TextField
+          size="small"
+          label={i18n("translate_interval")}
+          type="number"
+          name="transInterval"
+          defaultValue={transInterval}
+          onChange={handleChange}
+        />
+
         <TextField
           size="small"
           label={i18n("min_translate_length")}