Submitting team in under 30 seconds was also how I usually play. Just got to do something else while letting the time pass, hoping that my opponent would quickly pick up their team and place tactics on their cards without knowing my lineup. Could piss off other players, but the idea of Splinterlands being a fast-paced auto battler card game has gone when they introduced tactics, plus the long matchmaking time because of low player liquidity. I don't think waiting for too long really matters to scholars, though, if it is their full-time job.