Tuning Vanilla Video Settings
Radiant Vivid Colors is built to run smoothly on older systems and low-end setups without causing frame drops. Because the shader itself is lightweight and keeps vanilla block and mob rendering intact, any lag you experience usually comes from base game settings multiplied by your shader loader.
1. Open Options, then go to Video Settings.
2. Lower Render Distance and Simulation Distance by a few chunks until frame times stabilize.
3. Set Graphics to Fast or Fabulous depending on what your shader loader recommends, and reduce Biome Blend if moving between biomes causes brief stutters.
4. Turn off heavy background overlays or unnecessary entity shadows if your loader exposes a separate shadow toggle.
Adjusting Shader Pack Options
If you are playing on integrated graphics or very old hardware and still want extra headroom, check the shader configuration menu:
1. Go to Video Settings and open Shader Packs.
2. Click Shader Pack Settings (in Iris or OptiFine) while Radiant Vivid Colors is active.
3. Look for profile presets or toggles related to lighting distance or color effects, and lower any optional extras while keeping the core colored lighting and saturation boosts active.
4. Press F3 in-game to confirm your frame rate stays steady while looking across water and brightly lit builds.