I Have a GTX 970 FTW and a I7 4790K and recently while just playing CSGO, (THATS ALL), my CPU usage as been as high as 50% which makes no sense. I Use to be able to stream but now when i try its laggy so i gave up. The PC came pre-built mayb something isnt inserted right as there are a few extra cables in the PC. Im lost at this point thanks for any help.