When I first built my computer and played csgo, I would get 260-300fps consistently. Whenever I changed my resolution or lowered graphics I could even push about 400fps sometimes. But now, I only get 180-210fps and push 260fps. All my drivers are up to date and all that. Ive even tried using things like game booster. One idea that I have is it may be the cpu heatsink and how it ran out, but I haven't checked yet. Also I don't think this is cpu bottlenecking because I would get 300fps when I first got my computer. One more thing to note, is that it's not a virus because I factory reset my computer multiple times and only installed csgo, and the problem was still there. Ive looked all over the internet for a solution and have found nothing, PLEASE HELP.
Cpu: Intel Quad core i5-6500 3.20GHz
Video Card: Gtx 1060 6gb
Operating System: Windows 10 pro 64-bit
Motherboard:Gigabyte - GA-H110M-A Micro ATX LGA1151 Motherboard
RAM:Elite Plus U-DIMM DDR4 8gbx1
Cpu: Intel Quad core i5-6500 3.20GHz
Video Card: Gtx 1060 6gb
Operating System: Windows 10 pro 64-bit
Motherboard:Gigabyte - GA-H110M-A Micro ATX LGA1151 Motherboard
RAM:Elite Plus U-DIMM DDR4 8gbx1