Recently I upgrade my Nvidia GTX 970 4GB to a RX 5700 XT RED DEVIL, and since then I getting some 'lagging' and the fps didnt improve at all, actually I had to downgrade to 970 again, because some games run too bad. My question is, can be bottlenecking? Or maybe too old proc (i5 4690k)? Diferent architectures? Bcase is running better with 970 honestly... All drivers updated, I even format windows to install proprer amd clean drivers.