The Dutchman said: “We have scored ten goals in three games, and now we’re starting to show our quality.
“We have a very good team and have showed this over the last few matches. Now we have to go on from here and win the next few games.
“It’s important not only to show we are good in the Champions League, but also the Premiership.
“We know we have to win more games. After we lost to Manchester United everyone was down and we knew it was important to recover quickly.
“It’s meant a lot to have won the three games since, but we also know that’s only three games and we need to do more.
“We had enough chances to score even more on Tuesday, but it was also very important for us to have kept a clean sheet.”