I just recently installed Ubuntu 18.04. All was fine but one nit picky issue I had was that when scrolling through firefox it would occasionally seem to stutter. This never happens for me on 16.04 or on windows.
I tried disabling hardware acceleration on firefox but that didn't seem to help, so then I tried installing the lated amdgpu-pro driver for my RX 480. I still seem to be having the same issue as before, but now general graphics performance seems to be worse. When I move windows around on the screen it is very choppy. Any way to fix these issues?