Which RTP version does this game run?
Before you set a bet on Chests of Cai Shen 2, accept that nobody can say when the bonus round will come. The timing of the Chest Respin is random, and so is the result of one session whatever the RTP. Set your bet and session length by the money you can afford to lose, not by the bonus you hope to see.
Check the RTP before you commit a deposit to Chests of Cai Shen 2. The version the game runs is shown only in its game rules, so open them before your first spin. An RTP is a long-run average over very many rounds, and it does not set the outcome of your session.
Treat the maximum win of Chests of Cai Shen 2 as a ceiling that few sessions reach. It is the largest payout the game can pay for one bet, and reaching it is very rare. Judge a session by your bet and your budget, and not by the top figure on the screen.