[RussEfarmer]

Something that helps significantly is enabling the experimental multicore rendering option. If you experience crashes, remove it, but if you don't, leave it in.

In the autoexec.cfg file:

Code:

gmod_mcore_test 1
mat_queue_mode -1
cl_threaded_bone_setup 1

autoexec.cfg is located in <steam directory>\steamapps\common\GarrysMod\garrysmod\cfg\autoexec.cfg. This configuration change is not permanent when placed directly in the console, and must be done this way if you don't want to enter the commands each time your relaunch the game.