Giannis Antetokounmpo wants to see more urgency from the Milwaukee Bucks after suggesting "fear factor" inspired his team to a big victory over the Boston Celtics.

Antetokounmpo scored 24 points, including a brilliant dunk, and finished with 12 rebounds as the Bucks snapped out of their January slump with a dominant 135-102 win over Boston on Thursday.

The Bucks had lost four of their previous five games, though some well-timed days off and a good practice session helped them reset.

And while acknowledging the Bucks will not always be able to turn it on as they did against the Celtics, Antetokounmpo wants to see the same level of urgency and motivation in every game.

"There was a respect-slash-fear factor also that's very important for this team, that we have to go out there and play at our best today," Antetokounmpo said.

"There was more urgency. Losing four out of five games. We had to be better, to play better.

"We had a great practice, talked about what we could do better, and guys were more urgent. We were very assertive, defensively we were helping one another.

"The team has to be more urgent, we have to respect the other team. We have to do this every single night.

"There'll be nights we play bad, where the other team makes the shots, but having a good practice and a couple of days off, that helped."

Bobby Portis added 28 points to the Bucks' total, combining with Antetokounmpo to devastating effect in a 25-0 burst midway through the first half.

"I love the way we responded," said Bucks coach Adrian Griffin. "We responded like champions today."

The Celtics have lost two of their last three games, though still remain three wins ahead of the Bucks in the Eastern Conference standings.

"We just didn't have it," Celtics coach Joe Mazzulla said. "That can happen from time to time."