Hi
It's strange because I'm running the R9 280x and RX 570 in the same pc, I had a monitor plugged in on the performing Gpu will the other Gpu was underperformin. I tried for days to fix it and decided to plug another monitor in on the under performing Gpu and that fixed my problem. Took the monitor out afterwards and both GPU's are performing well now.
Thanks for everyone's help.
Dukebit