My hair is very laggy, HairStrandsVoxelization takes >120ms

Just imported hair from blender using alembic importer, and the groom immediately tanks my framerate.

The same thing happened with the default MetaHumans project, and my groom is pretty basic (1400 strands, 12000 verts).

Turning off Voxelize fixes it, but I’ve seen other people run hair with voxelization just fine. Any idea what’s causing it?

Specs: GeForce GTX 1060 3GB, Intel(R) Core™ i5-4670K CPU @ 3.40GHz
Happens in Unreal 4.26.2 and 4.27.2

Solved, the mesh was scaled very large creating a lot of voxels, scaled it down and it’s pretty performant.

Not sure why MetaHumans was slow though.

Sorry to necro, I’m having groom performance problems (same thing, voxelization).

What do you mean by “scaled it down”? Where can you control it?