I have been a windows user since the year dot, I am an IT pro (with windows). I just bought the iMac I5 with 8G of RAM I have downloaded PS CC from creative suite and it runs like a pig! I tried to sharpen an image with unsharp mask and it took ages. TRIED THE SAME PIC ON MY OLD WINDOWS PC AND IT RUNS SEAMLESSLY..
Does anyone have any advice on setting/preferences that could help?