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

[sylvain.bertrand at gmail.com]

> My CPU load is also super low and never above 50 % on a single
> core.

This is the issue: looks like cpu capping in the 3d engine.
But, since csgo 3d engine is direct3d designed, this is why vulkan.

linux csgo devs are the ones who can profile properly their game and figure out
the culprit.
(could be linux networking related too).