Bo Horvat put it best on Monday night, following an exhibition match in which Mathew Barzal scored twice against the Devils to continue a training camp trend that has seen the center-turned-winger put the puck in the net at an eye-opening rate.

“I just think he’s actually shooting it,” Horvat said. “I think that was everybody’s knock on him before was, ‘I don’t think he shoots the puck enough.’ And he’s proven what kind of shot he’s had this preseason. He’s just gotta continue shooting the puck, cause he’s got a lethal shot.”

Whether Barzal is actually shooting the puck more often or just doing it better is up for debate.

Barzal said he doesn’t feel like he’s shooting more and — though there are no public stats kept from the intrasquad scrimmages in which he has been doing most of the scoring — preseason numbers back him up.

Based on the large grain of salt that is training camp, though, Barzal looks like a good bet to cross the 20-goal Rubicon for the first time since his rookie season.

“Bo has surprised me with how good of a passer he is,” Barzal said. “You hear about the shot and the goal-scoring. He can dish the puck. He’s found me on a couple good chances that I’ve been fortunate enough to bury.

“I know I have to score. I just have to.”

Though nobody would have said no to a few more Barzal goals, the Islanders have not quite needed him to produce scoring in the past compared to now.

At center, he was primarily an assist machine in a system that offered relatively few offensive opportunities.

The system has not changed drastically, though coach Lane Lambert is a tad more offensively inclined than his predecessor.

But the combination of Barzal and Horvat on the top line is expected to drive scoring — and Horvat is perhaps the best offensive player Barzal has regularly played alongside in his career.

Horvat’s acquisition from Vancouver last February served as a response to the long-standing criticism that the Islanders had not surrounded Barzal with enough talent to unlock his considerable potential.

They got just seven games together before Barzal went down for the rest of the regular season, and six more games in the playoffs in which they looked — surprise! — like they were still getting on the same page.

A full training camp and preseason together can get them on a little more than a mere first-name basis.

So far it is paying off, with Barzal adapting to a new position and new expectations.

“I think me and Bo have both adjusted pretty good, just reading off each other,” Barzal said following the 6-5 loss to New Jersey. “Whether I’m in the middle, he’s on the wall, that kind of thing. So it kind of forces me to forecheck a little bit more, try to win battles on the wall and whatnot. I’m still getting used to it, just in different situations a little more.”

Barzal has generally downplayed any changes that come with shifting to wing, but he did admit that one of his goals Monday — a first-period breakaway that he put past Akira Schmid — came because of the different responsibilities at the position.

Both players say their chemistry is still a work in progress.

And how the Islanders will deal with the third piece of their line remains to be seen.

That, as much as anything, indicates how high the ceiling could be here.

“Offensively, we’re starting to get familiar with each other, where each other’s gonna be,” Horvat said. “He’s a pretty special player to play with. He’s making all those plays and finding you when you don’t think you’re open. He’s fun to play with.”