I wouldn't worry about it. Perhaps there are some settings in the bios that can be stream lined. A good overclocking guide for your motherboard is a good source for bios features etc as well as your manual.
If you get no luck from other advice then I would start from scratch again but this time let window's finish its updates. It should install a driver package automatically. Then Install the games you play and test.
I think you have to do things incrementally to try to isolate the issue.
Try this as last resort. There are so many factors at play here unfortunately hardware, software and settings etc.
Good luck.