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Mods › Prism Performance

Prism Performance

Adaptive performance optimization mod for Minecraft 1.21 designed to enhance FPS and reduce frame drops.

13 config settings

Build 1.0 · checked 13 September 2026

Guides

Config

  • Animation Optimizer animation_optimizer — Reduce animation calculation frequency when FPS is low. May cause slightly less smooth animations under heavy load.
  • Chunk Render Optimizer chunk_optimizer — Optimize chunk rebuild scheduling to reduce lag spikes. Spreads rebuild work over multiple frames.
  • Dynamic Render Distance dynamic_render_distance — Automatically lower render distance when FPS drops below the target and raise it when FPS is stable. Helps maintain smooth gameplay.
Show all 13 settings
  • Smart Entity Culling entity_culling — Skip rendering entities that are hidden behind walls or outside the camera view. Can significantly improve FPS in entity-dense areas.
  • Entity Render Distance entity_distance — Maximum block distance at which entities receive full rendering. Entities beyond this use simplified rendering.
  • Show Performance HUD hud_enabled — Display a real-time HUD showing FPS, frame time, and memory usage.
  • HUD Scale hud_scale — Scale factor for the performance HUD overlay.
  • HUD X Position hud_x — Horizontal position of the HUD in pixels from the left edge.
  • HUD Y Position hud_y — Vertical position of the HUD in pixels from the top edge.
  • Max Particle Count max_particles — Hard cap on the number of particles rendered simultaneously when Particle Limiter is active.
  • Particle Limiter particle_mode — Controls how many particles are rendered. Off = unlimited, Balanced = moderate reduction, Aggressive = heavy reduction.
  • Performance Preset preset — Quickly apply a set of optimizations. Ultra Performance maximizes FPS, Balanced is a good middle ground, Quality preserves visual fidelity.
  • Target FPS target_fps — The FPS threshold used by Dynamic Render Distance. If FPS falls below this value, render distance will be reduced.

Requires

ModNeededVersions
fabric-api required *
cloth-config required *
prism-modmenu required *

Needs Java >=21.

Frequently Asked Questions

How do you toggle Prism Performance in-game?

Use the Toggle Prism Performance keybind configured in the Controls menu.

What does Dynamic Render Distance do?

It scales the active render distance up or down automatically based on your designated Target FPS.

How does Smart Entity Culling improve performance?

It skips rendering creatures that are hidden behind walls or outside camera view to alleviate processing overhead in crowded areas.

Where can you adjust the performance overlay position?

The overlay can be customized using HUD Scale, HUD X Position, and HUD Y Position in the settings screen.

Download Links

Mods › Prism Performance