First test with RhinoNature + Vray 5
how long did that take to render, and what are your hardware specs?
i think it took about 10 minutes (GPU).
AMD Ryzen 9 3900X 12-Core Processor 3.80 GHz
NVIDIA GeForce RTX 3070
Physical RAM: 64Gb
i also did another test changing lighting conditions, this time 5000px wide