"I (have) not shown my game at 100 percent. I still think I can be better."
As a result, Malkin returned to Russia this offseason, where he trained in Moscow with Penguins strength and conditioning coach Alex Trinca, focusing on his skating.
He said his goal is to return to playing 20 minutes per game this season, something he hasn't done since the 2013-14 season (20:04). Last season, Malkin had 18:48 of ice time per game.
"I always feel like I'm thinking on ice," Malkin said. "But it's only when you're older you realize how I can change (my) game to be better."
If he can be better, he said he feels the Penguins still have the pieces in place to compete again for the Stanley Cup, something they've done together three times (2009, 2016, 2017).
"With this team, we have (a) real chance to win again," Malkin said. "I believe that, for sure. Because we have professionals in our organization.
"My desire is to win a fourth Cup. It's, like, not many Russians with four Cups. I would be (the) only one. This is my target right now."
Malkin, who was selected by Pittsburgh with the No. 2 pick in the 2004 NHL Draft, has 1,002 points (391 goals, 611 assists) in 852 regular-season games and 168 points (63 goals, 105 assists) in 162 playoff games.