I bought a pc from ibuypower a couple months ago and it came with a i5 9400f, gtx 1650 super, and a gigabyte b365m ds3h motherboard. I upgraded my i5 to a i7 9700k (it was on sale for black friday) and installed a noctua NH d15. I booted up cod cold war and was lagging and skipping really bad even after I optimized setting In the GeForce experience app. I even benchmarked it and it says everything is working smoothly. I checked and my gpu is running at approximately 5-10% while playing games, before it was running at around 60-70%, that seems kind of weird to me because I didn't think my gpu usage would change or go down with the installation of a new cpu. My cpu is running as it should and so is my ram. I was only able to install one of fans on the noctua so I don't know if that is a part of the problem or maybe my gpu isn't getting enough power. There is also a possibility that my mother board isn't powerful enough to support all of this. I have also heard that updating my bios might help. I'm new to computers so I don't really know how to go about fixing it. I'm not sure why my computer isn’t preforming, but hopefully someone here can figure it out.