The forward led the team with 22 points and 18 rebounds during their 101-80 win over the Milwaukee Bucks.
The 30-year-old told reporters: "I'm trying to be more aggressive and I think our team needs me to be more aggressive in the paint.
"We have so many guys that are good jump shooters, we need somebody around the rim that's going to attack the basket.
"It's all about taking what the defense gives us. Most importantly, I think our team is playing more consistent basketball."
Lee has averaged 19.1 points per game so far this season.