Lumen version issues

Trying out 2023.2

Understand its beta here are some issues!

  1. With lumen turned on, all lights shimmer, as if the scene is under water.
  2. I cannot find a way to soften shadows and light instances caused by sun (previously increasing sun size made shadows and highlights smoother)
  3. The sun slider is like on or off! the slider is useless usable range is 3-300 lumens which is the far left of the slider anything else then say goodbye to your retinas.