Spurs were beaten 2-0 by Chelsea on Thursday night in a blow to their top four hopes.
On the game, the rapid defender stated they were not good enough on and off the ball.
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He told Sky Sports: "Today was not a good performance from us. We can do much better.
"First half we didn't try to play. We didn't push forward when we come out. We tried to play in the second half but there was not that confidence today.
"We have to take a look back a this game and bounce back better at the weekend."
On their top-four chances, van de Ven added: "It will be difficult. I don't want to look up to the Champions League after this game, it was not a good performance from us and it is important we play a good game on Sunday."