You might want to have your proshop check the position of your cam. I don't know where the Bowtechs are supposed to be set at, but I know that on my Mathews, the two small holes on the cam are supposed to be perpendicular to the string. If the cam is out, this could also effect the arrow speed. Also you could pick up some speed by switching to featers. But be carefull not to put yourself below the specs that would void your warranty.