The more I increase the velocity in a reload when all other variables are the same, the lower the POI. A flatter trajectory is why. Some say recoil pushing up on a barrel before the bullet exits makes slower velocities shoot higher. However the higher velocity round of the same bullet weight and caliber has much more recoil and it still shoots lower. This is my personal experiences and not something I've read about.

All my personal experiences with the effect of recoil is the anticipation will make you miss. Bad shooting form affects accuracy as well. Control is VERY difficult since fractions of a degree off the mark equals a bad shot.