theoeey

I'm having some extremely irritating lag on most Arma 3 servers. this happens usually immediately as I spawn into the game My game starts to run at about 20-50 frames per second but in intervals of about 4-8 seconds it frezzes then keeps playing and so on and so on. I have tried re installing drivers, re installing arma, turning off firewall and a few other things but so far nothing has worked. some servers run smooth and without lag spikes mostly but most times when i join some realism op with i get these lag spikes. my single player runs smooth and self hosted servers. PLLLZZZZ help it game breaking my system specs are AMD FX 8350 8 core @ 3.6ghz GTX660 SC 16 GB GDDR3 ram 500 GB WD hard drive 700W power supply