Massive lag when taking off (solved)

[Trusin]

Whenever I try to take off in a helicopter or rocket, things get real laggy. I lowered settings in graphics but I don't think it is that as I have no lag at any other time. as soon as you get away from the city things get better. You don't even have to be looking at the city, you could be looking up at space and the lag is still so bad. Makes flying near / around cities impossible. for landing I just aim from far away and hope for the best.