hi guys recently i have been having some fps spikes in game for no reason lol. my computer is like an overkill gaming computer it plays LoL with like 600fps and on gunz it has like 1000fps so i just cap it at 250. but suddenly its been having these like fps lags but the fps is still stable. also it crashes after 2hours of playing and a pop up says 'nvidia windows kernel driver has stopped responding and recovered'. thanks