Some games suddenly running extremely poorly

Hello!

I’ve went to play two games recently and realized they’re running less than half as good as they should be.

Ark survival ascended and cyberpunk 2077. Cyberpunk typically runs at 170-200fps depending on what I have my DLSS set to, and is now running at 70-80 on the same settings. 60 if I turn off frame gen.

Fortnite runs perfectly fine.

I tested expedition 33 and BG3 to see if maybe my graphics card is dying or something because Fortnite is more CPU intensive whereas the two affected games are heavier on the entire system. And both expedition 33 and BG3 run just as smoothly as normal.

Everything is up to date, my storage drives aren’t full, I tried validating the game files, and even dusted out my PC and none of it worked.

How can I fix this?