you should get 280Fps to 290Fps at around 200 to 210psi. Are you running Co2 or air?? as this can effect it depending on your set up. Let me know your set up on your marker.
1. Check bolt tip o-rings.
2. Grease the popet and check the spring, Make sure the poppet on the back of the gun is screwed the whole way in.
3. It may be a faulty solinoid pilot or it requires greasing on the three way solinoid.