Game running bad on powerful PC Recently I bought a new gaming computer. Here are the specs:

 AMD Ryzen 5 1500X Quad Core 3,5 GHz

Radeon Sapphire 580 series 4 GB Vram

16 GB RAM

pretty much every game i've tried so far has been running very smoothly. However, the only game that   lags is PayDay 2. I can not understand why. Here are somethings I've done to fix it:

Lowered all the graphical settings

Updated the latest drivers

"Repaired" the game files

Reinstalled the game

But nothing works. It does not make sense since all the other games (Minecraft with shaders, BF4, GTA 5, Skyrim etc runs incredibly smooth (60fps) on Ultra Graphics. It even says in my Radeon Software App that the avrage FPS is 60 when I launch it, but that is clearly not the case. It even lags in the main menu, which I think indicates somethings off. 

Please help!