How do I install Tpsum?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Tpsum work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Tpsum

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by Sixik · on CurseForge

Performance optimization mod improves mob spawning, biome lookup, worldgen allocations, and task loop hot paths.

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader NeoForge1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Tpsum is a small, performance-focused optimization mod for Minecraft (Forge/NeoForge).
It targets hot paths that are executed extremely often during normal gameplay (server tick, mob spawning, biome lookup, and worldgen), aiming to reduce CPU time and avoidable allocations/GC pressure.

⚠️ No new content - Tpsum only improves performance.

Highlights

Mob spawning (NaturalSpawner) optimizations
- faster spawn checks and fewer expensive calls in the spawn hot path
Faster biome lookup
- cached noise-biome source and small math hot-path improvements
Reduced worldgen allocations
- pooled feature placement context to lower GC load
Task loop improvements
- optimized BlockableEventLoop queueing/counting for high task throughput

More details / technical breakdown

All optimizations, behavior notes, and profiling details are documented in the GitHub repository:

https://github.com/DeusSixik/Tpsum

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as tpsum-1.20.1-0.0.10.jar — drop this file into the mods folder
Download size: 1.1 MB
Download link checked 2 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

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