Louis: Other than the speed of the bow, the only other thing I can think of that might be causing the higher arrow impact is that the shelf itself might be higher than it is on your other bows. I know you said this isn't the case, but it doesn't take much of a difference to cast the arrow higher. If you're shooting instinctively, it would just take some getting used to before you get it dialed in.
Likewise, even if you're getting good arrow flight now with the nock point where it is, you may be able to raise it a bit and still get good arrow flight while bringing the impact point down a bit. Do you currently have it set the same distance above the shelf as on your other bows?
I suppose there is another thing that could also cause it. If the limbs are out of timing, they could contribute to erratic arrow impact.
Because you said you shoot high wrist, I'm assuming you don't heel this bow or the others. Heeling it would kick the arrow up.
All in all, I think it just might be the extra speed that you'll just have to adjust to. Shouldn't take too long. Good luck.