diff --git a/services/tui_service.py b/services/tui_service.py
index e3508be..8cb912c 100644
--- a/services/tui_service.py
+++ b/services/tui_service.py
@@ -427,7 +427,6 @@ class SystemMonitor(Static):
 
     def refresh(self, **kwargs):
         """由外部 asyncio task 驱动刷新（比 set_interval 更抗 Android 挂起）"""
-        self._refresh_stats()
         try:
             if not self._collector:
                 self.update("📊 系统监控: 数据源未连接")