My cpu (i5 4690k) will go from ~10% on the desktop with Firefox and teamspeak open to 90% and above once i start a game like battlefield 1 my disk also goes up to 80 - 90% and my memory gets high as well, which is normal (i think). in game i get frequent frame drops and the game is just choppy overall, my specs are an i5 4690k an evga gtx 970, a msi z97s krait edition mobo and a h90 cpu cooler. My temps average around 35 - 40c when i am playing and 25c while idle. I have had the cpu overclocked but changed it back to stock clock because i thought i was having high usage due to a bad oc but the problem didn't change. When i had overclock i made a mistake where i had changed the cpu wattage to what the oc would have been because the bios wasn't very clear (to me) and it was my first time overclocking, i'm not sure if that has anything to do with it. Thanks in advance for the help.