Running Sushi bonus timing and session luck
Choosing Running Sushi means accepting that nobody can time the bonus round. How often the Free Spins arrive is not known in advance, and the result of any single session stays random, whatever the RTP of 96.00 says. Two sessions with the same bet can end far apart, even though both follow the same rules.
Deciding how much to stake starts with the game rules. Which RTP version Richard Casino runs for Running Sushi is shown only there, so read them before you change your bet. The rules are the only place where that version is confirmed for this game.
Chasing the x3,000 maximum win means aiming at a ceiling that is reached very rarely. At the example top bet of A$1 that ceiling is A$3,000, and the cap applies to Free Spins too. Read the maximum win as a limit on the payout, not as a target for any one session.