Wayne Rooney added two more goals to his tally on Sunday to pass 30 for the season, but he insists there is room for improvement in his game.
The Manchester United striker's brace in a 4-0 victory over Aston Villa means he is now just three short of matching his personal best return.
Breaking through that 34-goal barrier is a top target for the England international, with it his desire to continuously better himself.
That mentality means he is reluctant to settle for anything less than perfection, and he considers his latest outing to have fallen short of his impeccably-high standards.
"It was nice to score two goals but I didn't think my performance was good enough," Rooney said.
"The rest of my play wasn't great. I am disappointed with that and I will be working hard to put it right."
While unhappy with his match-winning showing, Rooney is pleased to have played some part in helping United respond positively to a surprise setback against Wigan and preserve their five-point lead at the top of the Premier League table.
"Obviously we were disappointed with our performance against Wigan but we had a chance to get that out of our system and keep that distance between us and Manchester City," said Rooney.
"It was a big game for us and we deserved to win."
United are now firm favourites to defend their title and secure a 20th top flight crown, but Rooney admits they cannot afford to relax with some testing fixtures still to come.
He added: "A month or six weeks ago, if somebody had told me that we would be five points clear at this stage of the season I would have been delighted.
"Next week against Everton is another massive game for us.
"We need to get three points there to make it an interesting night against Manchester City."