it drops mostly when many humans are shooting their energy weapons.
Or when i approch other players.
The strange thing is that i always got good pings around 50-70. Though it feels as if it lags but the ping doesnt cahnge.
Maybe you should try to lower some graphics effects and try to spectate a tyrant rush on SST maybe on niveous
If fps still drops down then probably the problem is network related (throughput ?)
I sometimes have this problem too, but it seems related to some player whith crappy ping, every time i meet him the game becomes a slideshow .... :evil: