I'm not sure how fast my bow and my girls bow should go..but this seems really slow. Her bow browning adrenaline, easton jazz arrows, 26" draw and 48lbs pull, 65grain tip, 177fps 5' from the arrow. (this was shot 3x all three were 177fps) my bow martin orion, easton gold tips 55/75, 27" draw, 55lbs pull, 100grn tip, 207, 209, 208, 207, 207, 5' from the arrow. Is this right? I mean seems pretty slow, I don't think I can shoot mech heads at these speeds, maybe not even deer at all, opinions?