Mutch starred for Watford in the first part of the season, earning him inclusion in Alex McLeish's plans once his loan expired.
But now Mutch has had to come to terms with the different requirements of the highest level.
"In the Premier League it's tidier, there's better football players and you see great goals, great bits of quality," he told the Birmingham Mail.
"You don't see that much in the Championship. It's more about fighting for everything, everybody is competing and it's end to end.
"So there's a bit more class in the Premier League and it's more possession-based.
"But you still have to be quick and sprint over the first five or ten yards to make sure you are in the right place."