Well, I'm running with background and textures set to high/very high, shadows turned off, bloom set to low and of course no AA or AF the rest is set to low or medium , finally got it working smoothly.
I'm getting used to interface, it's cool and all but after some time spent in Spire taking random missions from the station I found them VERY repetitive , there are plenties of the exact same missions named 'Assasination' , 'Infiltration' etc. even story missions aren't too different...
Still this is by far one of the best space combat games
maybe it will never reach the level of Freelancer but still it's cool