Leeds dominated throughout against a below-par Robins side, with former APOEL chief Christiansen quick to hail the victory which lifts his side back up to fourth place in the Championship table.
"I was very happy with the performance of the team," he told reporters. "It is the same players who put us in the position we were in going into the match and today the difference was the intensity of our play.
"We knew we were up against a good side and that probably helped. We needed to be brave and believe in ourselves. The early goals were important and today we took our chances, whereas in other games we should have been ahead, but failed to score when we might have."
Leeds, currently five points adrift of the top two, return to action in midweek with a trip to face Leicester City in the EFL Cup.