Remcobenck

For some reason when i am playing truckersmp the rest of my pc lags, like when i am watching youtube while playing, the video lags for some reason, and when i am alt tabbed (so out of game) the lag is gone, cant figure out what it can be. I had not this before, it randomly came. It only is when i am driving, when i am in the menu or alt tabbed its gone. And no it does not happen when i am playing other games, just truckersmp