SAN FRANCISCO >> Steph Curry at least stepped foot on the floor in the fourth quarter, so Tuesday night marked an improvement from the Warriors’ 30-point loss two nights earlier. But to coach Steve Kerr, the defeat to the Miami Heat was just as bad.

“We feel deflated right now,” Kerr said after the 114-98 loss, their second in a row and third in six games on the home stand by double digits. “There’s no room for feeling sorry for ourselves in the NBA — in life in general — we can’t let disappointment dictate our approach to the game. We have to do the opposite. We have to bring more fire than our opponents when things aren’t going our way.”

Besides Curry, who led Golden State with 31 points on 11-of-22 shooting (8-17 3 pt), the Warriors combined to shoot 29-for-76 (38.1%) from the field and 6-for-33 (18.1%) from 3-point range. And after a 22-turnover debacle against the Kings, they only coughed up the ball 11 times.

But here’s what concerned Kerr.

“I mind when missed shots affect the defense and the attitude,” he said. “I expected better energy. ... That’s what was most disappointing tonight. I just felt like everybody was down and we didn’t have a competitive spirit. If you don’t have that, you’ve got nothing. So we’ve got to find a way to build that back up.”

The loss sent the Warriors to 5-16 since their 12-3 start, and the optimism of October and November is beginning to feel like a lifetime ago. The shooting woes have gone on for weeks. They’re dead last in looks at the rim. The one player who had begun to emerge as a reliable scoring threat alongside Curry, Jonathan Kuminga, was ruled out almost until the trade deadline, when decisions must be made about how to improve the roster — or whether it’s worth the attempt at all.

It’s all beginning to take a toll.

“I think we’re suffering from a crisis of confidence right now, frankly,” Kerr said. “... (The players) are quiet and they are down and lacking confidence. We’ve got to find our confidence. The only way you find that is through a competitive spirit and edge and you fight for everything, lift each other up and talking on defense. There’s got to be a competitive connection, and we lack that right now.”

For the second game in a row, Golden State fell behind early against an opponent playing under less than ideal circumstances. With Miami coming off a double-overtime loss the previous night, the Warriors were able to get out to an early 14-8 advantage. But they trailed 29-23 by the end of the first quarter and never regained the lead following an end-to-end loss to the Kings on Sunday.