In the words of Fuzzywally, "fps is only a small piece of the pie."
If you have a gun spitting out 1000fps but you cant hit a lorry from 10 meters, then that gun is usless. Fps does not = range.
If your gun has the power to shoot 510fps, then goodie for you. But its waaaay more important to be able to hit your target.
In short, its neuteral.