It might change and it might not, depends one the arrows and the bow you are shooting. The speed might not increase enough to make a real noticeable difference. You may have to adjust the gap on your pins though.

Anytime you change anything on your bow it could effect how it shoots or how you shoot. Raising your poundage will change the spine, this might make your arrows weak, then again it might make them better if they were stiff to begin with. And since changing your draw weight involves adjusting your limbs there is a chance you can change your tiller and nocking point if you don't adjust both of them the exact same amount. And raising your draw weight might create a condition where you just don't shoot it as well, we call it being over bowed.

You will never know unless you try though. If you don't like it just turn it back down and recheck the tune.

You will probably notice it most shooting fixed blade broad heads.

Paul