While playing league,my RX 570 can't clock more than 400mhz,just around 300mhz,my CPU was just 30-40%,sometimes my fps went down to about 50 while playing at 1080p Ultra settings,that is really annoying,the GPU temp was good,around 41*C,I have tried the recommend driver version(19.5.2) and the most recent driver (19.7.3),both have the same result in LoL,Vsync was off all the time
Did you ever figure out what was causing it>