Turn off <a target="_blank" href="https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&amp;ssr=false#review-details">settings-sync extension</a>. 
ref.: <a target="_blank" href="https://github.com/microsoft/vscode/issues/148226#issuecomment-1181446548">https://github.com/microsoft/vscode/issues/148226#issuecomment-1181446548</a> 
I confirmed that the <a target="_blank" href="https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&amp;ssr=false#review-details">settings-sync extension</a> was causing the problem, and it was resolved by turning off the extension.
<a target="_blank" href="https://github.com/shanalikhan/code-settings-sync/issues/1361">High extenstionHost CPU usage when Settings Sync is enabled shanalikhan/code-settings-sync#1361</a> 
<a target="_blank" href="https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&amp;ssr=false#review-details">https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&amp;ssr=false#review-details</a>

  
Turn off [settings-sync extension](https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&ssr=false#review-details).  
  
ref.:  
[https://github.com/microsoft/vscode/issues/148226#issuecomment-1181446548](https://github.com/microsoft/vscode/issues/148226#issuecomment-1181446548)  
  
I confirmed that the [settings-sync extension](https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&ssr=false#review-details) was causing the problem, and it was resolved by turning off the extension.

[High extenstionHost CPU usage when Settings Sync is enabled shanalikhan/code-settings-sync#1361](https://github.com/shanalikhan/code-settings-sync/issues/1361)  
  
  
[https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&ssr=false#review-details](https://marketplace.visualstudio.com/items?itemName=Shan.code-settings-sync&ssr=false#review-details)

Solve VSCode taking high CPU time on Mac Mini.