A quick summary of Performance

Performance / Optimizations

  • Disable all lighting (especially real time global illumination) on the server side.

My personal recommendation would be to use the asset called Headless Builder. I have been using it for a few months and it is great for performance as it disables unecessary things such as cameras, lighting, etc on the server in which simply selecting "Headless build" from the Unity build menu do not do. It can also save you quite a bit of runtime memory and build size as it can replace textures and models on the server side (which are not seen or used except for placeholders anyways) with small dummy assets.