Steve Kerr singled out the drive to improve as fuel for his "superstar" Stephen Curry to lift the Golden State Warriors, ahead of Monday's Game 5 matchup with the Boston Celtics in the NBA Finals.

Curry was at his transformative best in Game 4 on Friday as the Warriors evened the series up with a 107-97 win, scoring 43 points on 14-of-26 shooting along with 10 rebounds and four assists.

The 34-year-old has averaged 34.3 points in the opening four games of the NBA Finals on astounding shooting splits of 50/49/86 per cent, for a true shooting percentage 66.4 per cent and net rating of +12.

Speaking in the leadup to Game 5, the Warriors head coach cited Curry's valuing of preparation and work to maximise his shooting talent as the reason behind his play at such a high level.

"Just the consistency of his routine," Kerr told reporters. "He's a like a metronome, every day it's the exact same thing. He's in the training room, he's in the weight room, he's on the court and it's clockwork, but there's also a sense of joy and energy within that work.

"He enjoys it so much. He loves the process, and I think that's the thing that ties all great athletes together. Like, I'm talking about the superstar athletes, the Roger Federers of the world and Steph Currys of the world.

"There is a routine that is not only super disciplined but it's really enjoyed each day, there is a passion that comes with it, and that's what sustains it over time. When you love something like those guys do, you work at it, you get better and you just keep going."

Kerr also reserved some praise for Andrew Wiggins, who has provided valuable support in the face of Klay Thompson's shooting slump and patchy form from Draymond Green.

Only making the playoffs once in his career before this season, the 27-year-old has averaged 16.5 points and 8.5 rebounds, along with a steal and a block over the opening four games.

Traded to the Warriors in 2020, Wiggins has proved a compatible fit on both ends of the floor, with Kerr taking pride in his development.

"He's a very mild-mannered guy, but he's taking a leap in these playoffs, in terms of his impact on the game," the Warriors coach said. "Defensively, on the glass, you saw the other night with 16 rebounds and I think because the games are obviously so meaningful, there's more emotion from him and from everybody.

"The biggest thing is that he's a two-way player, you've got to have two-guys to make it this far and to succeed, and he has grown by leaps and bounds over the past couple of years. It's really fun to watch that growth."