Hello
Thank you for your question and reaching out. I can understand you are having issues related to wmiApSrv High CPU Usage.
To fix the issue, identify the process that's using a large number of handles or a large amount of memory. The process may have a memory leak or a handle leak issue. As a workaround, restart the process.
By default if you're using Windows Server 2016 or a later version of Windows, the Costly performance counters are disabled starting from the following Cumulative Updates:
Disable any Antivirus program or Windows firewall you may have for temporary purpose.
Reference:
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