I didn't read all 18 pages, but:

- The House Edge/RTP is the MONEY you lose/win, not the games. Example: flipping a coin (50/50), if you win I pay you 1.90. You'll win 50% of the games, but the HouseEdge is 5%, as you get $1.90 instead of the fair $2.00

- House Edge of 0.57% (RTP 99.43%) is based on a perfect play/strategy. What Blackjack Strategy table are you using? (For example, I used to use the ones from wizardofodds.com).

- Are ALL of your bets made in Blackjack and Blackjack only? Some games like Plinko requires higher samples to achieve RTP. Changing the amount you bet can also change your statistics (for example, if you increased your bet amount in the latest 10% of games).