in your opinion, all shadows? Or only have one source?
In v0.1.2, I removed some cameras which really helped framerate, but not quite there yet. I was thinking next was to combine some meshes, but could try no shadows too.
Thank you for playing!
Only use baked shadows. Disable all other shadows. It made the real performance boost in my experiments. Start by disabling all. Also be sure to mark non moving objects as static. Than you can make the scene nicer by baking it. It takes quite long depending on your scene. So only do it when the scene is fully completed.