Waddock has so far maintained his team's friendlies are simply fitness exercises but he is now challenging his players to up their game ahead of the big kick-off.
The Chairboys face one final pre-season test at home to Brentford before meeting Watford in the first round of the League Cup next weekend and Waddock wants his players to start performing ahead of their showdown with the Hornets.
He was unhappy with some aspects of his side's play as they overcame Conference side Cambridge 3-2 at The Abbey on Saturday.
Following the game he told the media: "It's pleasing from the striker's point of view but we conceded one from a penalty and there was a sloppy second goal. There were one or two pleasing bits from our play but there's room for improvement as well.
"Fitness is the number one but you want players to start hitting form. This was another good test for us away from home. We want the players to start putting in performances as well."
