If i run faster towards you my bolts also fly faster towards you its only logical.

Prerequisites: Dex 13, Dodge, Mobility, Point Blank Shot, Shot on the Run,Drow Weapon Training

Benefit: If you have moved at least 10 feet toward your target since the start of your turn, your crossbow attacks deal an extra 1d6 points of damage against that target in this round. The damage increases to 2d6 on level 6. This feat’s benefit doesn’t apply when you are mounted. In addition, reloading your crossbow does not provoke attacks of opportunity.