might want to look at how much arrow/ bolt, broadhead weight your shooting, if your too light, your missing a lot of energy down range
at 22 yards most modern X box should be able to push thru a shoulder blade(not always but most all have way more KO than a bow does at 20 +yards)
its IMO a common mistake many X bow guy have, using broadheads more for vertical bows and now X bow(heavier heads) to reap all the rewards a x bow can have for them!