gMod broken ?

[Rahiro]

A few things I changed when I had similar issues.
:Make sure everything is in the right folder, if it isn't delete/move as necessary.
:delete addons you don't use/aren't working.
:disable all addons before going on server. (important if you like building and using the search menu for props, or it'll take a week to load)
:make sure all the drivers for video cards etc are up to date.
:monitor your processes, gmod crashes for me when cpu load gets too high, so don't use skype or browsers whilst in game.
:use razor gamebooster, it's a nifty way to enhance game performance, I can play swtor on a 1.3ghz laptop at max graphics with gamebooster.
:options for gmod, change graphics and disable things like shadows, shadows and certain effects can cause lag you're end.

At the end of the day if it's lagging for you, and you only, then it's a hardware/cpu issue, (imo) and what I've listed above should help.

Thank you , I will report back after I reinstalled windows - as it was time didnt clean my computer for 4 years now^^
Anyways I am going to monitor my crashes.