High cpu usage, slow computer

Jul 17, 2018
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I turned on my pc earlier today and noticed everything seemed a bit slower then usual. I was playing a few games and was getting very bad performance (35-45 FPS) with my cpu at 100% usage and my gpu at only 25% I updated my gpu drivers and ran virus/malware scans that found nothing. I’m not sure what else to try, maybe updating bios?

My computer:
Windows 10
I7-4790k @4.0ghz
Gtx 980
Z97-k
500w psu
16 gb Corsair vengeance ram