Imaging this, I load up my game (Rust) and for the first 2-3 mins its working fine cpu working at 50-60% getting 100 frames then after the 2-3 mins the cpu usage drops to about 10-20% and doesn't budge, doesn't boost doesn't go to 0% just stays where it is, while ingame the frames stay about 10-20 again they do not drop to 0 fps or completely crash it just runs slow, just need to know before I splash out on a new cpu, motherboard and RAM if their is any way of fixing this? cause I cant really afford it xD]