Well, see here's the thing. The dealer actually is working for the casino. If pots are larger, then the casino gets to take the full rake. If play is going normally, and pots aren't generating enough action, then the casino is going to "call the pen" also known as "The black widow".
This is a dealer who knows all the tricks of the trade, pharoh shuffling, dealing seconds, bottoms, culling, false shuffles/cuts. He's got the chops. What this guy does, is deal multiple players good hands, like QQ, JJ, AK. Then the flop will come: QJA. Everyone thinks they have a good hand, the turn comes, A. Now everyone KNOWS they have a good hand. Bets are flying, the sound of chips hitting fills the air, and merryment is had by all. All the while the house is taking a full rake off all these pots. Then at showdown, Jacks full, and trip aces can't believe their luck to have been up against Queens full. But since it's live, players just muck their hands and fume, with no previous hand button to view mucked cards.
It's not an effect on mojo, it's cold calculated dealer hijinx.