I only play KOTH on hostiletakeover and have only been to assylum altis life server once or twice. Have not tried any other server. Have no mods I have personally installed. Will check that out when I make it back home tomorrow.

Work keeps me busy so just got home. Thanks for looking into the issue. Usually, I can play or have had no issues, but would be able to play for atleast 3 hours or so before I would get a bunch of major FPS lag. So bad that textures were missing and I couldn't even move in game, nor log out. Even Alt+Tabbing or going to task mgr to shut down the game wouldn't work. I would have to reboot the hole PC. Sometimes when it also does this it will just black screen on me. Seems to be getting worse by far.