You can capture a CPU snapshot and send it to clion-support at jetbrains.com, we will analyse it.
Also you can try disabling `C/C++ | Data flow analysis`, `C/C++ | Unused code` and `General | Simlifiable statement` inspections on the `Preferences | Editor | Inspections` tab, it might help.
https://intellij-support.jetbrains.com/hc/en-us/community/posts/360001507919-CLion-use-600-of-CPU

本文介绍如何通过捕获CPU快照并发送至JetBrains支持网站进行分析,同时建议禁用C/C++中的一些性能检查,如数据流分析、未使用代码检查和简化语句检查,以降低CLion的CPU占用率。
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