Every minor app running in your system tray steals "cycles" from your game.
Most CPUs are throttled because the RAM is running at default slow speeds. Enable XMP (Intel) or DOCP/EXPO (AMD) in your BIOS to let your CPU access data at the memory’s advertised speed. How to Optimize CPU for Ultimate Gaming
Use Task Manager to disable everything you don't need (e.g., Spotify, Steam, Discord, or printer helpers) from launching on boot. Every minor app running in your system tray
Go to Control Panel > Hardware and Sound > Power Options . significantly boosting FPS in modern titles.
Enable this in the BIOS to allow the CPU to access the entire GPU frame buffer at once, significantly boosting FPS in modern titles.