The Blues secured a vital 1-0 victory to take them four points clear in third-position on the Premier League table.
Lampard admitted he wasn't completely content with the performance, but knows results are the important thing at this stage of the season.
Speaking after the game, Lampard said: "At this stage of the season results are critical and we didn't concede any chances of note to let them score. We were professional. I want more but that can wait. Where we are at as a team and where we are in the table it is all about the result.
"We need to move the ball quicker and be more mobile with our rotations. We have done it in parts this season but if we want to move on it needs to be better. But I don't want to be too critical after a win.
"We didn't give them anything to worry us. We had 10-15 minutes in the second half where we were slow and I didn't like it but after that we got it back. There was a bit more personality in our game but we can improve."