I agree. It's why I've made it so the other three animatronics are sluggish and heavy in their movements, sort of like how they're weighted down by the massive cloth material that is wrapping around the endoskeletons. Anyone could reasonably outrun the likes of Bonnie.As for Foxy: I figured that, due to their being a severe lack of cloth material, and the skeleton is primarily shown, that there is no weight to truly hold it down. That, and by only moving 'once' (as in to go back and forth from the stage to the office), there is a surge of energy that allows Foxy to run at great speeds.That's my idea, though. I try my best to find some reasonable explanation as to the 'hows' and 'whys'.