My Windows 11 PC acting weird for the past week

before this week i got consistent 140-180 fps in all my games, but suddenly rocket league can´t get above 100 fps and my 1% lows are in singe digit territory. I tried DDU because maybe it was the drivers since it happened around the time i installed new drivers. It did nothing, I looked at windows computer logs and it shows a lot of errors but most of it was me closing programms via taskmanager. I did scans for corrupted windows files and it found some but it didn´t fix anything. and i looked into my pc and HWInfo to see if it is thermal throtteling but it was clean. does anybody know the cause?