Topic: Nothing But Lag

Im two problems in First strike.
When I Open the launcher, it says error connecting to server. I ran it as administrator but I havent tried adding it to bypass my firewall yet.
But thats not the major problem, forget about that and help me with this.
My game, just lags so much. Its unplayable. I can play only the forest map without lag. Every other map, when I aim at the entire map from one far side of it, I lag so bad I get 5 fps. Then I look away to the skybox or just so there isnt as many buildings, and Lag is cured.
I lag the most at the map with the giant capital spaceship battle of yavi or something like that. I get 1 fps on that.
I cant believe that I get beautiful framerate on 2142, with everything on low but it still looks great, and lag so bad on this. I have everything on low in first strike and I see no effect.
Please help me. How can I reduce lag? I wanna play this so bad.