[Spice-devel] Slowness in virtual desktops display update issue mentioned in kvm

[Glenn West]

Be careful when virtualize linux desktops, and u expect good response to the screen.
The Graphics mode can really effect the screen/desktop performance. I was badmounthng
another distro, only to find out that the graphics mode has a huge effect on performance,
and the default modes may be really bad config for a virtual environment. 

This can even effect text mode, as well as graphics mode.

So dig a bit before u assume its a distro, or a 3d rendering issue, it may just be a mode.