diff --git a/src/main/core/manager.ts b/src/main/core/manager.ts
index 103862f..fb3db58 100644
--- a/src/main/core/manager.ts
+++ b/src/main/core/manager.ts
@@ -62,7 +62,7 @@ export async function startCore(detached = false): Promise<Promise<void>[]> {
     core = 'mihomo',
     autoSetDNS = true,
     diffWorkDir = false,
-    mihomoCpuPriority = 'PRIORITY_HIGHEST'
+    mihomoCpuPriority = 'PRIORITY_NORMAL'
   } = await getAppConfig()
   const { 'log-level': logLevel } = await getControledMihomoConfig()
   if (existsSync(path.join(dataDir(), 'core.pid'))) {
diff --git a/src/renderer/src/components/settings/mihomo-config.tsx b/src/renderer/src/components/settings/mihomo-config.tsx
index 7cfda65..bdcc815 100644
--- a/src/renderer/src/components/settings/mihomo-config.tsx
+++ b/src/renderer/src/components/settings/mihomo-config.tsx
@@ -23,7 +23,7 @@ const MihomoConfig: React.FC = () => {
     pauseSSID = [],
     delayTestUrl,
     userAgent,
-    mihomoCpuPriority = 'PRIORITY_HIGHEST',
+    mihomoCpuPriority = 'PRIORITY_NORMAL',
     proxyCols = 'auto'
   } = appConfig || {}
   const [url, setUrl] = useState(delayTestUrl)