Intel i9-9900k Poor Performance

On testing purpose

1 Disable Core Isolation Memory Integrity via windows settings.
How to Turn Core Isolation Memory Integrity On or Off in Windows 10 & 11 - MajorGeeks

2 Disable VT-d via BIOS settings
Advanced mode > Advanced > System Agent (SA) Configuration
Select VT-d and set to DISABLED

3 Disable Intel (VMX) Virtualization Technology via BIOS settings
Advanced mode > Advanced > CPU Configuration
Select Intel (VMX) Virtualization Technology and set to DISABLED

Press F10 (Save and Reset)

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