Gartside claimed in a radio interview before the Barclays Premier League match that supporters had become bored with the team's style of play.
"The Bolton chairman has been saying a lot about me and I am very disappointed with the comments he has made," he said after the 3-1 victory at the Reebok Stadium.
"But actions speak louder than words. We played them off the park and won the game.
"That answers everything for me, rather than get into a fight.
"I would rather look forward than back. I have moved on and left Bolton in the best state it has ever been in.
"I do not understand his (Gartside's) thinking. He believes I have done certain things which I have not.
"He really should not. I have given them a great platform so I do not know why he is so critical of me."