Planetside 2 on 5770

I played this game last year and today i reistalled it but now i can't get nice frames. I found out that sometimes with higher settings it works better but i can't balance it out.

I have i5 760, 4b of ram and ingame with Alt+F in lacks of GPU

I would appreciate if anyone has nice CFG for older cards or an online guide for optimisation.

You should disable all... Only textures and graphic should stay at medium or so.