Computer lost massive FPS from 1 day to the other.

I have been playing Marvel Rivals and PoE2.

I didn't have any issue with any of them on the 8th. then yesterday I noticed that my FPS is PoE2 went down to 60-70 while lagging sometimes. I thought maybe it would have been only impacting PoE2, but starting on that day, Marvel Rivals is giving me the same issue.

I reimaiged my computer only installing the drivers and the games and same thing.

I tried Heaven Benchmark and that one seemed fine as it was at 244 fps.

I tried another offline game (Bioshock infinite) and the FPS was at 140 for 1440p.

Any help on further troubleshooting steps would be appreciated.

Specs:

Windows 11 24h2 (I believe it wasnt on 24h2 before I reinstalled windows)

CPU: Ryzen 9 7900

GPU : 4070 TI

RAM: 32GB DDR5

PSU: 1000w