diff --git a/app/appearance/langs/zh_CN.json b/app/appearance/langs/zh_CN.json
index b305b2111..cd85ff254 100644
--- a/app/appearance/langs/zh_CN.json
+++ b/app/appearance/langs/zh_CN.json
@@ -966,8 +966,6 @@
     "resetWindow": "重置窗口并退出程序",
     "quit": "退出程序"
   },
-  "_performance": {
-  },
   "_kernel": {
     "0": "查询笔记本失败",
     "1": "文件名重复",