Emery said: "Yes, we did really well. The first 20 minutes we started a bit soft in everything. Even when we scored (the offside goal) we then conceded some big chances.
"Then we controlled it better. In the first half we were suffering a bit with Nelson Semedo and Pablo Sarabia. We tried to reduce that better in the second half. We were disciplined and had control of the game more or less, even when they dominated a little bit, we were defensively focused to do well.
"We were speaking before the match about the injuries we had and we needed to try to work with every player in the season.
"I want more of course. To score a goal in different ways is very important. But overall I am happy because we were very organised in the 90 minutes and we did well to create our chances to score. We are happy for Ezri Konsa but we have to try to think about how to get better options for every player to score goals.
"The challenge we have is to go to Manchester City (next). We have to try to prepare the best possible way with the players we have. We have to try to do our best and keep going to be consistent. We are happy with the three points today and it is very important so we need to enjoy that as well."