my friend just got an rtx 2080 and ever since he installed it all he is having is problems. He played black ops 4 blackout and he is saying there isn't much of a performance increase from a switch from a gtx 1070. Also when he is streaming he is saying his cpu usage is at 100% and it makes his game stream stutter alot. Today he used the gtx 1070 to test it out and all those problems went away. Could it be a bottleneck and how can he fix this?