Lower the graphic settings:
In the game settings, reduce the graphical parameters such as screen resolution, detail, textures and shadows. This will reduce the load on the graphics card and processor, which can lead to an increase in FPS.

Update your graphics card drivers:
Make sure you have the latest drivers installed for your graphics card. New drivers may contain optimizations for specific games, which may improve performance.

Close background apps:
Close all unnecessary applications running in the background to free up system resources. This will help focus more resources on the game.

Use optimization programs:
There are programs such as Razer Cortex, MSI Afterburner and others that can help optimize the system during the game, manage processes and resources.

Update the RAM:
If you don't have enough RAM, it can affect the performance of the game. Consider increasing the amount of RAM on your computer.

Check for viruses and malware:
Malware can negatively affect system performance. Check for viruses and, if found, remove them.

Update your system:
Make sure you have the latest version of the operating system installed. Sometimes updates can include fixes and optimizations that can improve the performance of games.

Change the launch of the game:
You can try running the game in fullscreen mode or windowed mode without frames. This can affect performance.

Video card overclocking (advanced users):
If you have experience in overclocking, you can try a small overclocking of the video card. However, be careful and monitor the temperature and stability of the system.


**the basic parameters are not for us, so go below to the config**

1) Go to the root folder of the game, then to the core/cfg folder.
2) Create a file "changename".cfg(without ")
3) Go into it through any text editor and write this code:
"config"
{

}
4) Enter the commands.
(example)
"config"
{
"stats_display" "3"
""im_furry eb" "1"
}

5) And we get cfg for s&box and in general Source 2.

1) Go to the game launch parameters.
2) Enter "+exec your name.cfg"
3) YUUPI!

Alt:
1) Go into the game.
2) Open the console (on ~ (e))
3) Enter: "exec your name.cfg" and press Enter
4) YUUPII

Open cfg file and put commands :
r_post_fxaa 0
vr_enable_tonemapping 0
vr_enable_high_precision_lighting 0
vr_postprocess_enable 0
r_mixed_shadows 0
r_rendersun 0
r_shadows 0
r_grass_density_mode 0
r_high_quality_shadows 0
vr_aoproxy_enable 0
r_directlighting 0
mat_fullbright 1000
r_drawskybox 0
r_grass_quality 0
mat_dof_enabled 0
r_drawsprites 0
vr_render_decals 0
r_ssao 0
r_ssr 0
r_translucent 0

https://steamproxy.net/sharedfiles/filedetails/?id=3021596233
https://wiki.facepunch.com/sbox/