I have a xfx 6800 and a Ryzen 5 3600. I am terribly under performing in all games and noticed that my cpu usage was at 6% and it was only drawing 20-30 watts. Its probably a problem with power supply because its only 500w, but I want to make sure its not another problem before I buy a new one.
Just tested in beamng drive and cpu usage was ranging from 2% - 6% and cpu only had about 25 watts.
I was also only getting 40-50 fps.