FPS Cap at 40 after playing like 15 mins

As said in the title, FPS gets capped at 40 after some play time. 
This happened to me with NFS Heat as well, uninstalled it, tried Unbound and it's still the same. I have a laptop that has RTX 4060 and 7640HS, 16 gigs of ram. I don't know what's the problem. Some people on reddit mentioned it's about the services that anti-crack systems detect, but I don't see anything wrong with the services.