The deadline-day arrival from Real Madrid has been somewhat subdued in recent games.
"First of all, Ozil is a hugely talented player," said Wenger.
"He has just arrived here three months ago and overall did not have the best of preparations for the (Premier) League.
"Ozil is a young player, 25 years old so of course there is a lot of room for improvement for him."
Wenger maintains there is no extra special demands placed on the German playmaker.
"We have plenty of players who can take the ball and play, but because he plays in the central part of the pitch the ball goes through him," Wenger said.
"However, we don't put any special responsibility on him. Maybe he feels a bit more pressure to do that.
"But we just want the game to be played like we see it and do not put any special responsibility on him because everybody in our team can deliver great balls."
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