why do some slot machines seem to know your budget instantly

So I’ve noticed way too many times that if I walk up to a slot with fifty bucks, I’ll get just enough little wins to hang in there, but never long enough to walk away ahead. If I have two hundred, somehow the machine stretches my play longer, but I still end up broke most of the time. Feels like they’re reading my bankroll and adjusting outcomes based on that. I know it’s supposed to be random, but the patterns are so suspicious. Anyone else run into this or have a theory?