Some bow hunters like to make the draw length a little over what theirs is. Just to get more fps/energy out of the bow.

You can go down to the bow shop and chrono your bow. A change in arrow will increase your FPS.
Also, "2 blade broadheads tend to get better penetration", so say the pros.

But for fact i do know this.
My bow shoots carbon express 250 arrows at 231 FPS.
The bow shop i deal with said i can increase my fps by change in arrow, so they showed me.
The guy handed me a bemin ICS arrow equivalent to the CE250's.
It shot this arrow at 250 fps.

Maybe thats all you need is a little bit of fps to see better results.