Comment Re: Hate to be that guy, but Linux (Score 1) 517
In my experience, Linux desktop response suffers way more heavily under high disk load then Windows desktop response. Something with the way Gnome and KDE are prioritized in the kernel loop I would expect. Run something in the background that is chewing up the disk and expect windows to draw very slowly.
Try a lightweight desktop. Mageia5 using the LXQT desktop zips along on my 12-yo hardware.