Menus In my Gmod Glitching out, Lagging my game, i need help

every time i open the TAB menu, or view players, it pops up and lags my game and disappears and repeats until i let go of tab. This happens with the Q Menu (prop menu) and the C menu (customization menu) I did Unnistall all my addons, and even tho in the video i said i reinstaleld them… I DID NOT, I mispoke.

hard to explain the rest, DONT POST AN ANSWER TILL YOU WATCH THIS VIDEO