Gradual fps drops with seamingly no solution

[tidal thistle]

Windows?

[reef igloo]

Windows 11, but this started way after I upped to windows 11

[tidal thistle]

Does the CPU's clock still "boost"?

[reef igloo]

How can I check

[tidal thistle]

Either with the GPU's overlay function (from its drivers) or with RivaTuner Statistics Server.

tl;dr once my Windows 10 changed the "power management settings" on its own, so it stayed on "power saving mode" and thus the CPU wouldn't boost for games, like, based on the Source-Engine-1.

[reef igloo]

It's giving me 4.6Ghz which I think is boosted

[tidal thistle]

Welp, then the easy answer has been ruled out.

I can't help with more technical stuff, but while you wait, please list any software or modifications you made to your computer.

Such FPS drop over time is much unusual.

[reef igloo]

Ive done nothing. This is js random and unheard of apparently. My pc is on a completely fresh reset with only tf2 , spotify, and hwinfo installed, and just general tweaks like power optimization for performance.