So i remembered a while back i got a book called "Bowhunting big game" by Dan Dietrich, i was published in 1993 and it was mainly focused on compounds altho there was a section on traditional and crossbows, and it explained that the new compound bows could shoot at a whopping 275 fps!!
, and that some recurves where also very fast at 210 fps, anyway, on a latter chapter it explains that the deer must be calm before you shoot it, otherwise it will jump the string when it hears the twang of the bow or crossbow. "For a deer or any animal not to react to the noise before the the arrow hits, it would have to be traveling at about 500 fps and thats probably never going to happen", he was probably only talking about handbows tho.
