After playing GTA V 2 hours or so, the game starts stuttering, the fps drops a few seconds and goes back to normal. At first I thought it could be temperature related, but checked the temps for both the CPU and the GPU, and they were fine, none of them surpassed 60 °C. What could be the reason of this issue? It's weird because closing and opening the game seems to fix it to some extent (the drops in framerate are more spaced in time) and restarting the computer fixes it all, but again after playing 2 hours it starts to stutter..