Applying physics to a destructive/dinamic, did it become heavy?

Can you tell me if it was heavy?

First of all, the code and generation of grids and meshes belong to someone else. I just removed some things that were left over to have less triangles.

console to generate a subsequent chuncks example
terrainController.toggleClock( true, new THREE.Vector3(-120,0,0) );

Loaded fast and performs well…
I get solid 60fps during rendering. Something in the code is preventing running the profiler on it, so I can’t tell you what is taking the most time, but overall looks good.