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Video poker, on your PE+ machine or at any casino in Nevada, cannot legally be rigged to be more or less "loose" or "tight". Each hand must be a fair shuffle of a single deck of 52 cards (or 53 on a joker-based game). The only way to manipulate the payout is by changing the values on the paytable. You have just as much chance at hitting a royal or a quad at home as you do at the casino.
The easiest way to determine what game you have in your machine is to, with the door CLOSED, turn the jackpot reset keyswitch (under the armrest). Keep turning it until you see a screen like the one I've attached to this post. The "game program" ID is the game that's in your machine. If you post that info here, we can give you more information about the specific game in your machine.