Indigo's latest version comes with a massive performance upgrade in its Blender exporter.
Nicholas Chapman writes:
I am pleased to announce the release of Indigo Renderer 3.4!
Indigo 3.4 brings several major new features to the visualisation professional's toolkit, including the ability to render with section planes and orthographic cameras. Performance and convergence speed is greatly improved and IES support has been overhauled.
Read more about the other exciting features and improvements here.
We have also done a lot of work on the Blender exporter (Blendigo). The export speed is 3x or more faster in a lot of cases.
You can view the full 3.4 Blendigo changelog here.