Source-games crashing and having wierd mouse jumping on mac.

[kosshi]

Do anyone of you get crashes on games when game is loading new stuff? For example on gmod, when trying to load new map first time it usually crashes, but if i manage to load it, it wont crash again. Or when picking up skinned gun first time on CS:GO it has massive lagspike. And if i get achievement or open the shift+tab overlay thing it creates usually massive lagspike.
Also when i press esc to open menu, and then return to game, mouse just jumps somewhere.

These bugs have happened on all Source-based games on Mac. Is there fix for this?

Inb4 get a pc: Yea im trying.