About a month ago my CPU fan just started ramping up at the smallest tasks and every game I played would run normally with the CPU fan a lot louder than it used to be, but there would be frequent FPS drops and stuttering. The only thing that could have caused this was me changing the priority of Star Wars: Fallen Order in Task Manager, because this lag never happened before I did this. I've ran stress tests over and over for the past month, no CPU, PSU, GPU, disk problems (the only problem was with my external drive dying which I've gotten rid of), no viruses, no corrupted files (I do a sfcscan every few weeks), no cryptominers, no physical damage, no dust (I've cleaned my computer multiple times). Simple programs like Discord that never lagged before are now freezing up when I try to scroll up in a chat, opening Chrome makes all audio freeze and the cursor stutter all across the screen. Please help, I don't want to buy new parts