It's surprising reading some of the "they have no stage presence" takes here. Then again, it's kinda understandable for those who prefer the standard kpop they're used to.
This would be my how-to guide to achieve the natural stage presence of NewJeans:
Start with a demandingl kpop routine. Make it look more spontaneous than choreographed. More like they are having fun amongst themselves which naturally draws in the audience's Attention instead of outwardly seeking it. Really dance and look happy instead of focusing on striking killer poses and looking stoic. And finally make it look effortless (I'm guessing this is where the low energy take comes from) instead of looking winded with the obligatory heavy breathing for the ending fairy.
I actually hope their competitors studying them think the same and don't all start copying this aspect since it's the contrast that makes it work. Thesis-antithesis-synthesis.