The Ivory Coast international was impressive at right-back in Saturday's win over Crystal Palace.
"I think he was very happy," Pochettino said of the right-back. "We were very happy too. I think the performance was great.
"First half was fantastic, his concentration and focus.
"Now he needs to show and be consistent. It's not only one game and the second game the focus and intensity start to drop. That is the key in our team, not only him but all the players.
"All the players need to be consistent and understand that every time we are going to compete we have to give our best.
"Give like a collective our best and for sure we have the quality to beat any team."