I know there’s some debate about this, including with online slots (which have a higher RTP than actual in-person casinos). I have a lengthy blog post about this very thing, actually: https://slotslayers.com/whats-the-deal-with-online-slots/
From what I’ve experienced and heard, I’m not sure you can beat this game playing this way (or Cash Falls). But I can’t say for certain and will ask around some more. It’s going to be hard to get a firm answer, though. It’s possible if the RTP is high enough, you could be profitable long term; I wouldn’t fully rule it out.