Yeah, some NPCs have weirdly gained hitpoints. Noticed this in some Siptah vaults, too.The bosses there have twice the hitpoints of Red Mama, and even the mobs seem to have been beefed up.

But back on topic: The Volcano is meant to be the highest level area on Exiled Lands, so it makes sense that the NPCs there are no pushovers. Fighting groups of NPCs can be challenging, especially if a few of them are archers. You need to rely on mobility and dodging if you’re outnumbered.