A first-half hat-trick of tries from second-rower Liam Farrell helped the Warriors establish an unassailable 30-0 lead and Sam Tomkins extended it with his 14th try of the season within 90 seconds of the re-start. However, the leaders were scoreless for the last 38 minutes and Wane said that took the gloss off a fifth straight win.
"I was really impressed by some of the tries we scored in the first half he said," he said. "I thought our energy was spot on. But we were not consistent enough for me. The second half was awful, although the pitch was very sandy and the players said they were fatigued."
He added: "Six-apiece in the second half has taken bit of the joy away for me. We're not playing the way I want yet. If we had been ruthless in the second half, we would have been close."
Farrell caught the eye with his devastating finishing, twice taking advantage of defensive errors, to maintain his remarkable scoring rate.
"I rate him," Wane said. "We've got some good back rowers and he was good again.
"His consistency is outstanding. I don't think his defence has been outstanding this year but he runs hard. There is a lot of improvement in him but I'm very happy with where he's at."
Bradford coach Francis Cummins dubbed the game a yardstick to measure his team's play-off prospects after an encouraging start to the season but he remained upbeat despite a first defeat in four matches.
"Credit to Wigan for how they started," he said "We came up with some yardage errors and, when you give up field position to Wigan they are very ruthless.
"It ran away with us in that first half and it was always going to be tough from there but I was happy with the second half. I'm not too disheartened. Wigan will do this against other teams. I've told the boys we've just got to start again. We will be better for it."