Unlikely since it would need access to the blitz system to do it. I'd go with sswift's code and see if it works fast enough for what you want.
Sswift said that his code was faster I believe, because it respects the triangle connections and so doesn't have to smooth out the face normals of each triangle at each vertex, whereas the inbuilt blitz one does.
Sswift said that his code was faster I believe, because it respects the triangle connections and so doesn't have to smooth out the face normals of each triangle at each vertex, whereas the inbuilt blitz one does.