Transclucency Shadow Settings

I have an object with a translucent material shadowing another object in a level. However, I have a couple of things I’d like to improve

  1. The shadow resolution is very low.Is there a way I can adjust the resolution?
  2. The object is not self-shadowing. Is there a way to turn this on?

if it helps, in the Material I have
Domain: Surface
Blend Mode: Translucent
Shading Model: Default Lit
Lighting Mode: Surface Translucency Vlume