I've been having a problem for a few months now, and its getting quiet annoying, whenever i play anything, but i mostly play league of legends, my fps will drop within mins of the game, and stays that way. Lets say im getting 60 fps in the beginning of the game, then out of nowhere it drops to 12. And stays 12 the whole game. Its getting really annoying, plus my computer over heats constantly. PLEASE HELP
As you said "OVERHEAT", which is the culprit. Just have your PC clean and make sure your PC case has enough exhaust fan to give good air circulation inside. Also you might want to check the CPU and GPU temp.