Running realistic shadows, sunbeams, and biome-wide ambient lighting places extra load on your graphics hardware compared to plain vanilla Minecraft. If your frame rate dips during daily survival or large creative projects, you can balance visual depth and smoothness right from the settings menu.
Using Shader Pack Profiles and Options
1. Open Options, choose Video Settings, and go into your Shaders or Shader Packs screen.
2. Open the Shader Pack Settings menu (located at the bottom right in OptiFine or along the top bar in Iris).
3. Look for overall quality profiles or presets first, stepping down one tier if movement feels sluggish.
4. Browse the lighting and shadow submenus to lower shadow resolution or rendering range while keeping the pack's clean daylight and natural tones intact.
Balancing Vanilla Video Settings
Your standard Minecraft settings directly affect how much geometry the shader must shade every frame. Lowering Render Distance and Simulation Distance by a few chunks cuts down the number of distant trees and terrain blocks casting sun and moon shadows. If your shader loader includes a separate Shadow Distance slider on the main shader screen, bringing it slightly closer to the player preserves crisp nearby shadows for block building while freeing up performance across wide outdoor biomes.