Issues with Gmod shadows

Hello friends,

I’ve had this issue for a long time and I was hoping maybe it could be fixed once and for all with some help with the community.

Here is my issue with the shadows THE PICTURE IS BIG (Take a look at the small pixels in the edges of the soldiers

The issue is if you notice the white soldier’s helmet and parts of the torso have shading that is pixelated. This issue has been with me for a long time.
I’ve looked up all sorts of shadow add-ons, all sorts of coding from guides from here to gmod but it’s never fixed this issue.

(User was banned for this post ("Wrong Section - Next time try HELP and SUPPORT" - Kiwi))