
Modrinth · Minecraft mod
Immersive Optimization
A lightweight entity-tick-scheduler for doubling your TPS.
Quick answer
Which Immersive Optimization release should I use?
Immersive Optimization 0.2.0+26.2 targets 26.2 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.
Where it goes
Is Immersive Optimization required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Immersive Optimization 0.2.0+26.2 need?
0.2.0+26.2. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Immersive Optimization without breaking your instance.
Built for Immersive Optimization 0.2.0+26.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.2.0+26.2. It targets 26.2 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.2.0+26.2. It opens that exact file at the source.
About this project
What does Immersive Optimization add?
Immersive Optimization
An entity tick scheduler to massively reduce lag (~200% speedup) and resource requirements of entities.
Unlike similar projects, this mod will not disable ticks all together, allowing farms or distant entities to still function.
Works great together with Entity Culling.
Discord
While tested thoroughly, I expect some rough edges. Please report any issues on GitHub or Discord.
Features
- Gradually slows down tick rate of entities and block entities
- Distributes updates over multiple ticks to flatten lag spikes
- Dynamically adjusts tick rate based on server load
- Configuration commands (
/io ...)
Tested Mod-Packs
Exact values change based on situations, but I observed:
- 150% higher performance in Cobblemon 1.20.1 Fabric
- 330% higher performance on a private 700 mods pack (Gallery example)

Immersive Collection
Project description from Modrinth.
Pick your setup
Immersive Optimization by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
2 loader builds1.21.11
3 loader builds1.21.1
3 loader builds1.21
3 loader builds1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Immersive Optimization versions and loaders
0.2.0+26.2
immersive_optimization-neoforge-26.2-0.2.0.jar
14 Jul 2026
0.2.0+26.2
immersive_optimization-fabric-26.2-0.2.0.jar
14 Jul 2026
0.2.0+26.1.2
immersive_optimization-neoforge-26.1.2-0.2.0.jar
14 Jul 2026
0.2.0+1.21.11
immersive_optimization-neoforge-1.21.11-0.2.0.jar
14 Jul 2026
0.2.0+26.1.2
immersive_optimization-fabric-26.1.2-0.2.0.jar
14 Jul 2026
0.2.0+1.21.11
immersive_optimization-forge-1.21.11-0.2.0.jar
14 Jul 2026
0.2.0+1.21.11
immersive_optimization-fabric-1.21.11-0.2.0.jar
14 Jul 2026
0.2.0+1.21.1
immersive_optimization-neoforge-1.21.1-0.2.0.jar
14 Jul 2026
0.2.0+1.21.1
immersive_optimization-forge-1.21.1-0.2.0.jar
14 Jul 2026
0.2.0+1.21.1
immersive_optimization-fabric-1.21.1-0.2.0.jar
14 Jul 2026
0.2.0+1.20.1
immersive_optimization-forge-1.20.1-0.2.0.jar
14 Jul 2026
0.2.0+1.20.1
immersive_optimization-fabric-1.20.1-0.2.0.jar
14 Jul 2026
Looking for an older file? The official Modrinth project page is in Resources.