Where can you read the RTP version?
Choosing a bet size for Gates of Olympus 1000 means accepting that the bonus round cannot be scheduled. How often it comes is not known in advance, and the result of one session is random, whatever the RTP. A session can pass without any bonus round. Nothing on this page can predict how a session will go.
Decide on a session only after you check which RTP version this lobby runs. That information sits in the game rules, so open them before your first spin. The two versions differ only by a small margin, and the rules state which one applies.
Treat the top prize as a ceiling, not a target. The maximum win of Gates of Olympus 1000 is x15,000 of the bet, and very few rounds reach it. The figure marks the limit of what a round can pay, not an expected result.