Nanite + Lumen run like garbage on anything other than super high end hardware.

It is also very difficult to tweak and optimize.

Nanite isn’t as unperformant as Lumen, but its basically just a time saver for game devs, and its very easy for a less skilled game dev to think they are using it correctly… and actually not be.

But, Nanite + Lumen have also become basically the default for AAA games down to shitty asset flips… because they’re easier to use from a dev standpoint.