Read the game rules before the first spin
Each spin lands symbols on the 5x3 grid, and bonus rounds start only when their trigger symbols land. How often that happens is not known in advance. One session can bring several bonus rounds or none at all, and the result is random whatever the RTP.
Reels stop on a result that depends on the RTP version the game runs. Which version is in use is shown only in the game rules, so check those before you play. A player who wants the exact payout terms should read the rules before the first spin, not the summary.
Reels can land the highest-paying combinations on any of the 25 paylines, but the maximum win of Sleeping Dragon is a ceiling reached very rarely. The ceiling is a multiple of the bet, so the money amount grows with the stake. Reaching it is not something any player can plan for.