Problem running rainbow six siege?

[jobyspooky]

My computer is struggling to run rainbow six siege. I recently upgraded my cpu from a FX-8320 to a i5-6500, and my gpu is an RX 480, and I'm only getting around 70 fps per game, with fps drops almost every 10 seconds. My old CPU compared almost ran the same, so I'm wondering if I just spend almost $300 for no reason, or that I have an actual problem.

 

[richiestang_78]

Did you reinstall Windows after you upgraded? If not you pretty much have to.