Arshavin satisfied after Arsenal debut
"I enjoyed my debut in front of so many spectators, but am disappointed we did not get the result," he said.
"I think it was not so much of a problem for me on the pitch, but Sunderland played very defensively. All of their players stayed in the box. It was very difficult for us.
"We tried to play for a goal and had chances, but we were not happy."
Arshavin - signed from Zenit St Petersburg on transfer deadline day - feels it will not be too long before he is fully up to the pace of the English game.
"I am doing everything I can to be fully fit as soon as possible," said the Russian, who is ineligible for the remainder of the Champions League this season.