The Islanders are at their best when the workload is evenly distributed among all four lines.

Through the first two games of the first-round series against the Penguins, that hasn’t been the case. The Islanders need much more from their top line of Leo Komarov, Mathew Barzal and Jordan Eberle.

According to Natural Stat Trick, that first line has generated just six scoring chances, two of which were high-danger opportunities. It’s safe to say that most of those have come from Eberle, who started to get more of a feel for the puck in Game 2 and had arguably the Islanders’ best chance at tying the score in the third period of Tuesday’s loss.

Without captain Anders Lee, who was ruled out for the rest of the season in March with an ACL injury, Komarov has filled in on the top line’s left wing. He’s certainly not the most skilled player, but he brings a gritty element to the trio.

Then there is Barzal. Head coach Barry Trotz said he feels the 23-year-old center has another gear he can get to, which the Islanders desperately need in order to combat an offensively gifted Penguins squad as the teams head to Long Island with the series tied 1-1.

“He had some shifts [in Game 2] where he almost broke loose,” Trotz said.

“The number one thing with him, is when he’s skating, you can forget about the hands and all that. If he’s skating in straight lines, and getting to pucks, and playing that give-and-go game, he is extremely dynamic. When he tries to use his hands too much, or play a slowdown game, I don’t think he’s quite as effective. So, we’ve just got to get him play in straight lines.”

The fourth line, which is widely regarded as one of the best in the NHL, has contributed in its own way. Matt Martin, Casey Cizikas and Cal Clutterbuck, while bringing their usual physicality, have generated six high-danger chances together, according to Natural Stat Trick.

But only the Islanders’ middle six have been able to get on the score sheet. The third line of Kyle Palmieri, Jean-Gabriel Pageau and Oliver Wahlstrom have led the way, combining for three goals, including two from Palmieri in Game 1.

The second line of Anthony Beauvillier, Brock Nelson and Josh Bailey, however, has been equally effective despite having just one goal, from Nelson in the series opener. They’ve been aggressive on the forecheck and have consistently challenged the Penguins.

“I know our opponents, they really respect Nelson’s line,” Trotz said. “I don’t think they’re underrated it at all.’’

Said Nelson: “I’m not too sure how people view us. We believe in each other, that we have a good mix of skill, and want to go out there and try to contribute offensively and be responsible. I think we did a good job of that and built our game a little bit last year, then [we’re] trying to grow on that even more so this year.”