A new board won't magically let you shoot faster. If you can't get 17 bps on the stock board, chances are, getting a new one won't do you any good.
As for a QEV, I'd get one, and the SP 360 QEV's are amazing. Just for the heck of it, get one thats Epiphany rated, it's the same price, and will never fail on you.
If you want to squeeze even more performance off of it, get the TechT L7 Ion bolt or a DeadlyWinds Hollow Point. Personally, I'd get the L7 since it's much simpler and much more user friendsly, but the HollowPoint has the nifty ARB feature
A new ASA would be nice if you got that huge REDZ one. The CP Mini ASA is a great one.
Thats about all the things I can think of that will help, good luck!