How to improve FPS

Warning:

• Tutorials floating around that include more than what's here will likely cause issues. Do not follow them.
• You may experience crashes or other bugs if you do this, remove the autoexec.cfg changes if you do.

Windows:

Step 1:

Head to your Garry's Mod folder, open the cfg folder, open autoexec.cfg (Use can use notepad to open it) Add the following values:

cl_threaded_bone_setup 1
cl_threaded_client_leaf_system 1
r_threaded_client_shadow_manager 1
r_threaded_particles 1
r_threaded_renderables 1
r_queued_ropes 1
studio_queue_mode 1
gmod_mcore_test 1

Step 2:

Open game settings, select the video tab, click "Advanced..." and enable/make sure "Multicore Rendering" is enabled.

Step 3:

Open Windows Explorer, enter "Control Panel\Hardware and Sound\Power Options" in the address bar and set your plan to "High performance", if you do not have that plan or have a laptop select "Balanced".

Everything:

Turn down your graphics settings if needed. The applicable above steps will currently crash macOS and probably Linux users.