Bet winnings recalibrated?

I’ve noticed how all the games’ winnings pay out much less in their combinations during specific long periods of fire xp? It’s every world, every game. It’s paying me far far less than usual, same bets, same strategy, obviously so I will give up and buy more credits. Sorry, I don’t fall for that. 

Also, I notice that certain periods of the day pay better than others. You can’t tell me they haven’t done their market research to know who is playing and at what peak times so they can maximize these profits. All I’m saying is buyer beware!