When hunting, most situations allow you to know the distance, either through the use of a rangefinder or pre-measuring of your stand area. If the distance is known, speed is not a factor out of any hunting bow I'm aware of. In fact, the shorter your draw length or lower your draw weight, the more important it is to ignore speed and concentrate on high arrow weight, very high FOC and proper spine. As long as you can shoot at least 120 fps, I doubt trajectory will an issue inside of 20 yards on any setup. If you somehow couldn't reach that speed, you might have to keep your shots inside of 12-15 yards.

I can think of no other factor that is more overrated in regards to hunting success, than speed.