I have a 3 year old intel i7 8700 cpu and lately it has been hitting temperatures as high as 91 degrees celcius. I just bought a new motherboard (MSI PRO B365M PRO-VDH LGA 1151) and a brand new CPU Cooler (be quiet! pure rock 2) and applied thermal paste to try and solve this and nothing has worked. It used to just hit these high temps and never constantly be there but today after playing Call of Duty for an expended period of time my fps dropped from 150-160 to as low as 50 and the temps were high 80s and rising quickly so i shut the game off and everything dropped back down. Is there anything i can do to fix this issue or find out what the problem is specifically?