I'm running i7 4770 and 1050ti, 16gb of ram. When I play dota 2 at medium-high settings. I get 60fps stable and frametime stable at 16.2ms. Cpu usage is like 20-30% and gpu is 60-80%. And after a couple of minutes my CPU usage went up in 70-90% all of a sudden. And my fps went 60 to 40ish. When I try to open the task manager to see what causing my cpu usage high, and it will be back to normal like something is hiding idk lol. What are the probable cause if the sudden cpu usage?