Hi Mike,

> Which leads me to believe that for every single surface or
> curve, Flow has to make a separate calculation,

Yup, that's correct - each surface or curve goes through a fitting process that reconstructs it.

On something like you're showing there where each little hole is not really deformed so much you could try something like use the "Rigid" option for Flow to just replicate a planar hexagon over all those areas and then use boolean difference and use all those planar hexagons as cutting objects.

The "rigid" option only takes a point at the bounding box center of the object and deforms only that point to determine where to move and rotate the object, so it positions the object along the target surface but does not actually deform it when that option is enabled.

- Michael