[Bug 111082] Severe stutter in CS:GO surf servers, despite ~300fps

[sylvain.bertrand at gmail.com]

I did report my CSGO performance pb to valve devs:
https://github.com/ValveSoftware/csgo-osx-linux/issues/1111

I have no idea if my CPU bound performance pb is in the driver (which is very
likely since it's opengl), or the 3D engine.