diff --git a/src/config/index.js b/src/config/index.js
index 9b75f61..2d22dee 100644
--- a/src/config/index.js
+++ b/src/config/index.js
@@ -402,34 +402,64 @@ export const DEFAULT_TRANS_APIS = {
   [OPT_TRANS_GOOGLE]: {
     url: "https://translate.googleapis.com/translate_a/single",
     key: "",
+    fetchLimit: DEFAULT_FETCH_LIMIT, // 最大任务数量
+    fetchInterval: DEFAULT_FETCH_INTERVAL, // 任务间隔时间
+  },
+  [OPT_TRANS_MICROSOFT]: {
+    fetchLimit: DEFAULT_FETCH_LIMIT,
+    fetchInterval: DEFAULT_FETCH_INTERVAL,
+  },
+  [OPT_TRANS_BAIDU]: {
+    fetchLimit: DEFAULT_FETCH_LIMIT,
+    fetchInterval: DEFAULT_FETCH_INTERVAL,
+  },
+  [OPT_TRANS_TENCENT]: {
+    fetchLimit: DEFAULT_FETCH_LIMIT,
+    fetchInterval: DEFAULT_FETCH_INTERVAL,
   },
   [OPT_TRANS_DEEPL]: {
     url: "https://api-free.deepl.com/v2/translate",
     key: "",
+    fetchLimit: 1,
+    fetchInterval: 500,
+  },
+  [OPT_TRANS_DEEPLFREE]: {
+    fetchLimit: 1,
+    fetchInterval: 500,
   },
   [OPT_TRANS_DEEPLX]: {
     url: "http://localhost:1188/translate",
     key: "",
+    fetchLimit: 1,
+    fetchInterval: 500,
   },
   [OPT_TRANS_OPENAI]: {
     url: "https://api.openai.com/v1/chat/completions",
     key: "",
     model: "gpt-4",
     prompt: `You will be provided with a sentence in ${PROMPT_PLACE_FROM}, and your task is to translate it into ${PROMPT_PLACE_TO}.`,
+    fetchLimit: 1,
+    fetchInterval: 500,
   },
   [OPT_TRANS_GEMINI]: {
     url: "https://generativelanguage.googleapis.com/v1/models",
     key: "",
     model: "gemini-pro",
     prompt: `Translate the following text from ${PROMPT_PLACE_FROM} to ${PROMPT_PLACE_TO}:\n\n${PROMPT_PLACE_TEXT}`,
+    fetchLimit: 1,
+    fetchInterval: 500,
   },
   [OPT_TRANS_CLOUDFLAREAI]: {
     url: "https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai/run/@cf/meta/m2m100-1.2b",
     key: "",
+    fetchLimit: 1,
+    fetchInterval: 500,
   },
   [OPT_TRANS_CUSTOMIZE]: {
     url: "",
     key: "",
+    fetchLimit: DEFAULT_FETCH_LIMIT,
+    fetchInterval: DEFAULT_FETCH_INTERVAL,
   },
 };
 
@@ -459,8 +489,8 @@ export const DEFAULT_BLACKLIST = [
 export const DEFAULT_SETTING = {
   darkMode: false, // 深色模式
   uiLang: "en", // 界面语言
-  fetchLimit: DEFAULT_FETCH_LIMIT, // 最大任务数量
-  fetchInterval: DEFAULT_FETCH_INTERVAL, // 任务间隔时间
+  // fetchLimit: DEFAULT_FETCH_LIMIT, // 最大任务数量(移至transApis，作废)
+  // fetchInterval: DEFAULT_FETCH_INTERVAL, // 任务间隔时间(移至transApis，作废)
   minLength: TRANS_MIN_LENGTH,
   maxLength: TRANS_MAX_LENGTH,
   newlineLength: TRANS_NEWLINE_LENGTH,
diff --git a/src/libs/translator.js b/src/libs/translator.js
index fbfa521..c132bb9 100644
--- a/src/libs/translator.js
+++ b/src/libs/translator.js
@@ -13,6 +13,8 @@ import {
   OPT_TIMING_PAGEOPEN,
   OPT_TIMING_MOUSEOVER,
   DEFAULT_TRANS_APIS,
+  DEFAULT_FETCH_LIMIT,
+  DEFAULT_FETCH_INTERVAL,
 } from "../config";
 import Content from "../views/Content";
 import { updateFetchPool, clearFetchPool } from "./fetch";
@@ -104,9 +106,19 @@ export class Translator {
     };
   };
 
-  constructor(rule, setting) {
-    const { fetchInterval, fetchLimit } = setting;
+  _updatePool(translator) {
+    if (!translator) {
+      return;
+    }
+
+    const {
+      fetchInterval = DEFAULT_FETCH_INTERVAL,
+      fetchLimit = DEFAULT_FETCH_LIMIT,
+    } = this._setting.transApis[translator] || {};
     updateFetchPool(fetchInterval, fetchLimit);
+  }
+
+  constructor(rule, setting) {
     this._overrideAttachShadow();
 
     this._setting = setting;
@@ -120,6 +132,8 @@ export class Translator {
       .map((item) => item.split(",").map((item) => item.trim()))
       .filter(([term]) => Boolean(term));
 
+    this._updatePool(rule.translator);
+
     if (rule.transOpen === "true") {
       this._register();
     }
@@ -156,6 +170,7 @@ export class Translator {
 
   updateRule = (obj) => {
     this.rule = { ...this.rule, ...obj };
+    this._updatePool(obj.translator);
   };
 
   toggle = () => {
diff --git a/src/views/Options/Apis.js b/src/views/Options/Apis.js
index ed1424e..6c56ce9 100644
--- a/src/views/Options/Apis.js
+++ b/src/views/Options/Apis.js
@@ -14,6 +14,8 @@ import {
   OPT_TRANS_CLOUDFLAREAI,
   OPT_TRANS_CUSTOMIZE,
   URL_KISS_PROXY,
+  DEFAULT_FETCH_LIMIT,
+  DEFAULT_FETCH_INTERVAL,
 } from "../../config";
 import { useState } from "react";
 import { useI18n } from "../../hooks/I18n";
@@ -28,6 +30,7 @@ import { useApi } from "../../hooks/Api";
 import { apiTranslate } from "../../apis";
 import Box from "@mui/material/Box";
 import Link from "@mui/material/Link";
+import { limitNumber } from "../../libs/utils";
 
 function TestButton({ translator, api }) {
   const i18n = useI18n();
@@ -88,10 +91,26 @@ function TestButton({ translator, api }) {
 function ApiFields({ translator }) {
   const i18n = useI18n();
   const { api, updateApi, resetApi } = useApi(translator);
-  const { url = "", key = "", model = "", prompt = "" } = api;
+  const {
+    url = "",
+    key = "",
+    model = "",
+    prompt = "",
+    fetchLimit = DEFAULT_FETCH_LIMIT,
+    fetchInterval = DEFAULT_FETCH_INTERVAL,
+  } = api;
 
   const handleChange = (e) => {
-    const { name, value } = e.target;
+    let { name, value } = e.target;
+    switch (name) {
+      case "fetchLimit":
+        value = limitNumber(value, 1, 100);
+        break;
+      case "fetchInterval":
+        value = limitNumber(value, 0, 5000);
+        break;
+      default:
+    }
     updateApi({
       [name]: value,
     });
@@ -137,6 +156,7 @@ function ApiFields({ translator }) {
           />
         </>
       )}
+
       {(translator === OPT_TRANS_OPENAI || translator === OPT_TRANS_GEMINI) && (
         <>
           <TextField
@@ -157,19 +177,35 @@ function ApiFields({ translator }) {
         </>
       )}
 
+      <TextField
+        size="small"
+        label={i18n("fetch_limit")}
+        type="number"
+        name="fetchLimit"
+        value={fetchLimit}
+        onChange={handleChange}
+      />
+
+      <TextField
+        size="small"
+        label={i18n("fetch_interval")}
+        type="number"
+        name="fetchInterval"
+        value={fetchInterval}
+        onChange={handleChange}
+      />
+
       <Stack direction="row" spacing={2}>
         <TestButton translator={translator} api={api} />
-        {!buildinTranslators.includes(translator) && (
-          <Button
-            size="small"
-            variant="outlined"
-            onClick={() => {
-              resetApi();
-            }}
-          >
-            {i18n("restore_default")}
-          </Button>
-        )}
+        <Button
+          size="small"
+          variant="outlined"
+          onClick={() => {
+            resetApi();
+          }}
+        >
+          {i18n("restore_default")}
+        </Button>
       </Stack>
 
       {translator === OPT_TRANS_CUSTOMIZE && (
diff --git a/src/views/Options/Setting.js b/src/views/Options/Setting.js
index d82d435..e2c7995 100644
--- a/src/views/Options/Setting.js
+++ b/src/views/Options/Setting.js
@@ -89,8 +89,6 @@ export default function Settings() {
 
   const {
     uiLang,
-    fetchLimit,
-    fetchInterval,
     minLength,
     maxLength,
     clearCache,
@@ -121,24 +119,6 @@ export default function Settings() {
           </Select>
         </FormControl>
 
-        <TextField
-          size="small"
-          label={i18n("fetch_limit")}
-          type="number"
-          name="fetchLimit"
-          defaultValue={fetchLimit}
-          onChange={handleChange}
-        />
-
-        <TextField
-          size="small"
-          label={i18n("fetch_interval")}
-          type="number"
-          name="fetchInterval"
-          defaultValue={fetchInterval}
-          onChange={handleChange}
-        />
-
         <TextField
           size="small"
           label={i18n("translate_interval")}