Neurotec problems

Okay, so.
Every time I blow something up, this happens.
The particles that are shown here come directly from the explosion and just… “travel” to it.
Also, it’s unbelievably laggy. And never ends.

http://cloud.steampowered.com/ugc/1137414785933509868/DB1A18F40360429A4150C03F0EE311491DDF3D83/

This also happens on multiplayer, but other players don’t seem to be seeing the same thing.