ImmediatelyFast Backport

# ImmediatelyFast Backport

This project backports the ImmediatelyFast optimization mod to older versions of Minecraft.

## Why?

Many players still enjoy older Minecraft versions, but optimization mod development for those versions has mostly stopped. This project aims to bring most of the performance improvements from ImmediatelyFast to older versions so those players can still benefit from modern optimization work.

## Notes

This is a backport project and may not include every feature from the original mod. The goal is to recreate as much useful functionality as possible while keeping it stable on 1.16.5.

ImmediatelyFast Backport

ImmediatelyFast Backport brings immediate mode rendering optimizations inspired by ImmediatelyFast to Minecraft 1.16.5 Fabric.

The mod improves rendering performance by batching draw calls and using more efficient buffer handling to reduce CPU overhead during rendering.

Optimizations

This backport aims to improve the performance of:

Entity rendering Block entity rendering Particle rendering Text rendering GUI/HUD rendering Rendering used by other mods

It also includes targeted optimizations for certain vanilla rendering paths where possible.

About the Backport

This project adapts many of the rendering optimization concepts used in modern versions of ImmediatelyFast for Minecraft 1.16.5.

Because older Minecraft versions use different rendering internals, some implementations have been rewritten or adjusted specifically for the 1.16.5 rendering engine and Fabric ecosystem.

Not every feature from the original mod may be included, but the goal is to preserve the most useful optimizations while maintaining stability and compatibility on older versions.

Why?

Many players still use older Minecraft versions like 1.16.5, but optimization support for those versions has slowed down over time.

This project exists to help bring modern rendering optimization improvements back to older versions so players and modpacks can continue benefiting from newer performance work.