It's kinda a double edge sword. Shorter time limit encourages players to play multiple rounds since there's more to explore and it feels like less of an investment, but there's some mysterious optimal route that I haven't figured out yet that, if you're going for a highscore, you'll want to take every time which means you'll be missing a lot of stuff. There's also the worry that with the shorter time limit someone might not discover the flamingos.