"Our performance in the first half was so-so because I think we were so tired but in the second half we played better, we had a lot of chances to score," he is quoted as saying by the Daily Mail.
"In this moment, when you are in a difficult moment, after a defeat in the Champions League, it is important we start to win quickly.
"We played three days ago and Swansea played very well. They were fresh, so it was important to take these three points."
City are currently second in the league table with 21 points from nine matches, one point behind leaders Chelsea.