Reducing Heavy Shadow Casters
Soleron adds soft, realistic shadows to every block and casts shadows from trees, buildings, and mobs across the ground. In thick forests, animal pens, or sprawling towns, rendering shadows across all of those surfaces at once can lower your frame rate. To smooth out performance without turning the shader off, open Options and go to Video Settings. Lower your Render Distance by a few chunks so distant trees and builds are not drawn at the same time, and lower Entity Distance so faraway mobs do not add extra shadow work to your scene.
Adjusting Loader and Graphics Options
While still in Video Settings, open the Shader Packs or Shaders screen provided by your loader. If your loader provides a shadow distance slider, step it down so nearby buildings and trees still cast clear shadows across the ground while distant chunks do less work, or open the pack's settings screen to lower shadow options if available. Turning down vanilla Particles or Biome Blend can also free up headroom while keeping Soleron's warm daytime glow and softened vanilla lighting intact.