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Ultimate FPS MAX project artwork

Modrinth · Minecraft modpack

Ultimate FPS MAX

⚡ No magic FPS boost — but zero freezes, zero stutters, zero lag. 45+ optimization mods that stabilize your game, cut CPU/RAM usage and keep everything smooth even at 32+ chunk render distance. Fabric 1.21.1 🚀

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Ultimate FPS MAX release should I use?

Updated 4 months ago
Latest stable file Ultimate FPS MAX 1.0.0
Game version 1.21.1
Loader Fabric 0.18.6

Ultimate FPS MAX 1.0.0 is a complete pack release for 1.21.1 with Fabric 0.18.6. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 43 mods in this pack file.

Pack setup

How should I set up Ultimate FPS MAX for players and a server?

Use Ultimate FPS MAX 1.0.0 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install Ultimate FPS MAX 1.0.0
Dedicated server setup Match Ultimate FPS MAX 1.0.0
Pack loader Fabric 0.18.6

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Referenced mods 43
Client only 18
Server only 5
Not labelled 20

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for Ultimate FPS MAX?

Ultimate FPS MAX 1.0.0. Change the pack release and its contents or setup may change too.

43 mods in this pack file

The selected pack release is Ultimate FPS MAX 1.0.0. That file is for Minecraft 1.21.1 with Fabric 0.18.6. It contains 43 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Ultimate FPS MAX?

⚡ Ultimate FPS MAX — Smooth Performance Modpack

Minecraft 1.21.1 | Fabric | 45+ Mods


🎯 What does this modpack actually do?

Important: This modpack does not magically double your FPS counter. If you already get 120 FPS in vanilla Minecraft, you will still get ~120 FPS with this pack.

What it does do:

  • Eliminates freezes and stutters — no more sudden drops when loading new chunks
    • Reduces CPU and RAM usage — your system runs cooler and more efficiently
    • Stabilizes your FPS — keeps it consistent instead of spiking up and down
    • Scales better under load — lets you push further distances, bigger worlds, more entities without lag
    • Faster world loading — chunks generate and load much quicker
    • Better multiplayer performance — reduced ping impact, smoother experience on servers

🔍 Who is this for?

Situation Benefit
You get freezes every few seconds Gone ✅
You want to use 32+ chunk render distance Now possible ✅
You play on large multiplayer servers Much smoother ✅
Your CPU/RAM is under heavy load Significantly reduced ✅
You have a low-end PC More playable experience ✅
You already have 200+ FPS Stays stable instead of fluctuating ✅

📦 What's included (45+ mods)

🖥️ Rendering Optimizations

  • Sodium — Complete rendering rewrite, the foundation of this pack
    • ImmediatelyFast — Speeds up immediate mode rendering
    • Entity Culling — Skips rendering entities you can't see
    • More Culling — Extends culling to more block types
    • Enhanced Block Entities — Faster rendering for chests, signs, etc.
    • Particle Core — Optimized particle rendering

🧠 CPU & Memory Optimizations

  • Lithium — Deep game logic optimizations
    • FerriteCore — Cuts RAM usage significantly
    • ModernFix — Fixes performance issues in the base game
    • BadOptimizations — Additional micro-optimizations
    • ThreadTweak — Better multi-core CPU usage
    • Faster Random — Faster random number generation

🌍 World & Chunk Optimizations

  • Ksyxis — Faster world loading (removes spawn chunks)
    • Chunky — Pre-generates chunks to avoid in-game freezes
    • ScalableLux — Async lighting engine
    • Alternate Current — Optimized redstone
    • Structure Layout Optimizer — Faster structure generation

🎮 Gameplay Performance

  • Dynamic FPS — Reduces resource usage when tabbed out
    • FastQuit — Instant world quit, no waiting
    • Let Me Despawn — Smarter mob despawning
    • Clumps — Groups XP orbs to reduce entity count
    • Does It Tick? — Controls which entities actually tick
    • Get It Together Drops — Merges item drops

🌐 Network & Multiplayer

  • Krypton — Network stack optimization
    • Very Many Players — Designed for high player count servers
    • Packet Fixer — Fixes oversized packet issues
    • Raknetify — Replaces TCP with RakNet (better ping)
    • Fast IP Ping — Faster server list ping

🛠️ QoL & Misc

  • No Telemetry — Disables Mojang data collection
    • Debugify — Fixes known Minecraft bugs
    • Language Reload — Faster language switching
    • Remove Reloading Screen — Resource packs load in background
    • Shut Up GL Error — Removes harmless OpenGL spam
    • FastChest — Faster chest rendering
    • Sodium Extra — Additional Sodium settings

⚙️ System Requirements

  • Minecraft: 1.21.1
    • Mod Loader: Fabric
    • Java: 21+
    • RAM: 2GB minimum, 4GB recommended
    • GPU: Any (no RTX/ray tracing required)

📊 Real-world impact

The real gains show up when you push your game harder:

  • Run 32 chunk render distance → stays smooth
    • Enter a village with 50 mobs → no freeze
    • Join a server with 100+ players → playable
    • Open a large chest room → no stutter

Made with care for the Minecraft community. All included mods belong to their respective authors.

Project description from Modrinth.

Mods in Ultimate FPS MAX 1.0.0

Open any mod on Modpacks.ch to check its files and dependencies.

acceleratedrendering-1.0.8-1.21.1-alpha-fabric.3.jar SHA-1 6856931bb578d450bab59282ea561ee297faa997 · Modrinth version 2WnZwCHH · Project link unavailable Client only
Almanac-1.21.1-2-fabric-1.5.2.jar SHA-1 f259ee1c7b7e4d9c4abd59cc38e200cb1766ef3b · Modrinth version hUgNmeCO · Project link unavailable Server only
BadOptimizations-2.4.1-1.21.1.jar SHA-1 1461d8e46391efd32a3085150e86094c9f6f5c9d · Modrinth version S2qthD5S · Project link unavailable Client only
betterbeds-fabric-1.4.0.jar SHA-1 18bc5c4f40ff6e47d65526a59244c9ea57b83e3f · Modrinth version ZPmX9Uy3 · Project link unavailable Client only
cerulean-fabric-1.0.0-1.21.1.jar SHA-1 eac4a453a6ac36f76ce40572a79797ed076f3e6e · Modrinth version eVJq5HOt · Project link unavailable Server only
Chunky-Fabric-1.4.23.jar SHA-1 6c8098fc0f124c7b6492de60db0108747f7f9821 · Modrinth version RVFHfo1D · Project link unavailable Side not labelled
cloth-config-15.0.140-fabric.jar SHA-1 5d82342a2df53fd6df712bfdd583a811572918a4 · Modrinth version HpMb5wGb · Project link unavailable Side not labelled
Clumps-fabric-1.21.1-19.0.0.1.jar SHA-1 14628ba309d876cfefc4cef864a66ef12812066c · Modrinth version 3ene3W1l · Project link unavailable Side not labelled
dimension-leak-fix-mc1.21.1-fabric-1.0.0.jar SHA-1 27f401313115309d087940082953ddb315bc2e89 · Modrinth version 7lMflQaf · Project link unavailable Side not labelled
dynamic-fps-3.11.4+minecraft-1.21.0-fabric.jar SHA-1 c0ee92c6d8a48e077aa9b02f3470619eab17d59c · Modrinth version GBH14HiF · Project link unavailable Client only
enhancedblockentities-0.10.2+1.21.jar SHA-1 d81359d77fc7c5437f3e83e519dc2f869300f0cd · Modrinth version HBZAPs3u · Project link unavailable Client only
entityculling-fabric-1.10.1-mc1.21.1.jar SHA-1 6f7234ec1d50f563def59ab05ab44f62c119016b · Modrinth version umue6GAJ · Project link unavailable Client only
fabric-api-0.116.10+1.21.1.jar SHA-1 22b506a0770f148f46737329e8cae68aaefe3165 · Modrinth version ID8pq1x1 · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.10+kotlin.2.3.20.jar SHA-1 9873294abf498f509453d37b0a5ba019f4570ffb · Modrinth version 21TRTKmh · Project link unavailable Side not labelled
fastquit-3.0.0+1.20.6.jar SHA-1 9c4bf4fc3292d627fe0eff85a96672a15f27338c · Modrinth version dIGKewCo · Project link unavailable Client only
ferritecore-7.0.3-fabric.jar SHA-1 a8a6a34fcda177da2828cedef44e0e538cf78aad · Modrinth version sOzRw3CG · Project link unavailable Side not labelled
ForgeConfigAPIPort-v21.1.6-1.21.1-Fabric.jar SHA-1 18bf1f21cd2db6dcd4e42db85eae54e2a49a48ee · Modrinth version N5qzq0XV · Project link unavailable Side not labelled
fzzy_config-0.7.6+1.21.jar SHA-1 cff21f254e911a323fe49015d12e548d3e3b8d7c · Modrinth version kOmySYD4 · Project link unavailable Side not labelled
ijmtweaks-1.4.0+1.21.jar SHA-1 b4a2516c48f33dbed4179f8599f36da2029f8013 · Modrinth version xHeYa9k1 · Project link unavailable Client only
ImmediatelyFast-Fabric-1.6.10+1.21.1.jar SHA-1 ff2be016b12128fc0cd875a21a307d681edde817 · Modrinth version yHztKxR5 · Project link unavailable Client only
immersive_optimization-fabric-1.21-0.1.4.jar SHA-1 03823e9c93b0ad24b3aabff574f6ac99e2ee14ac · Modrinth version broKYqbi · Project link unavailable Server only
indium-1.0.35+mc1.21.jar SHA-1 1bf4b5db91f4e6d7a4f94fe2e96525d22df1cacb · Modrinth version Z8VpxxGh · Project link unavailable Client only
krypton-0.2.8.jar SHA-1 73e792eb5f120787becda4b87b6ff18b26caea50 · Modrinth version Acz3ttTp · Project link unavailable Side not labelled
Ksyxis-1.3.4.jar SHA-1 143fe088170e5777d3ccf5b488d61ee3635ebffe · Modrinth version vCQj9Ui7 · Project link unavailable Server only
language-reload-1.7.6+1.21.1.jar SHA-1 95c1266f43e330d4848dcf2e11a6be98a8990ce5 · Modrinth version lLMGPiZe · Project link unavailable Client only
letmedespawn-1.21.x-fabric-1.5.0.jar SHA-1 e88e3167ea203fae1b084360fc8242bdfff63128 · Modrinth version Wb7jqi55 · Project link unavailable Server only
lithium-fabric-0.15.3+mc1.21.1.jar SHA-1 c4a1c2b6de9915ac77ae46a005509d4acf09535d · Modrinth version XQJtuOTA · Project link unavailable Side not labelled
modernfix-fabric-5.25.1+mc1.21.1.jar SHA-1 4ab39e9c736e7204146792c545ec5b29fc0a3872 · Modrinth version NnNX8LBn · Project link unavailable Side not labelled
moreculling-fabric-1.21.1-1.0.7.jar SHA-1 733ba14a0b780c76ffef5935a512aedb8e1bef60 · Modrinth version y4J2jK6V · Project link unavailable Client only
no-telemetry-1.10.0.jar SHA-1 3d52342f5825d01dda6661ef7116cdbacbe49746 · Modrinth version cBEkQM9c · Project link unavailable Client only
noxesium-2.3.3.jar SHA-1 bbd309efa0fa2c69e0be268ccf06949ca07076a3 · Modrinth version 23vBW8kj · Project link unavailable Client only
Palladium-1.21-1.21.2-1.1.7.3p.jar SHA-1 e01c6e93a55be680bb9c179d19c278570d2a5e87 · Modrinth version lp6kFckd · Project link unavailable Side not labelled
particle_core-0.3.3+1.21.jar SHA-1 21134697c26b73cde41d1575c725ab30736d6b17 · Modrinth version mau4pnKr · Project link unavailable Client only
raknetify-fabric-0.1.0+alpha.5.196-all.jar SHA-1 478a2cfc10beb9141f681a404e0a61449406a723 · Modrinth version 4kUkTS6R · Project link unavailable Side not labelled
ruok-fabric_1.21.1_Pre-Release_5-1.7.4.jar SHA-1 e9c9f686a51c64856721856234fe0ae8ec2e696d · Project link unavailable Side not labelled
ScalableLux-0.1.0.1+fabric.d0d58ab-all.jar SHA-1 2ce889d9b1b210eef005ea03c3bbb39289c26e3f · Modrinth version Yx1tgJMI · Project link unavailable Side not labelled
skiptransitions-1.4.0+mc1.21.jar SHA-1 fd775a95322b8bd515f96c7cabcd425164ef442f · Modrinth version sHBS8WVg · Project link unavailable Client only
sodium-extra-fabric-0.6.0+mc1.21.1.jar SHA-1 66160fac4fdb9ddd854c5ed068fc329d24d09fd1 · Modrinth version anDafurZ · Project link unavailable Client only
sodium-fabric-0.6.13+mc1.21.1.jar SHA-1 928a2598178c3a58b0638bab842f467d2e49251a · Modrinth version u1OEbNKx · Project link unavailable Client only
threadtweak-fabric-0.1.5+mc1.21.1.jar SHA-1 47fe715b4b41644817cac50a7c79ecf26f48d7e3 · Modrinth version F4sjmsi3 · Project link unavailable Side not labelled
ToadLib-1.4.3-1.21-1.21.1.jar SHA-1 e9f8c082a69a0cfe716db7dbdd8db69e38656fa4 · Modrinth version HL3r2VlG · Project link unavailable Side not labelled
txnilib-fabric-1.0.24-1.21.1.jar SHA-1 95bd43012b414ce13efaba4b2fbd73dcd8951775 · Modrinth version 98FHAlrc · Project link unavailable Side not labelled
yet_another_config_lib_v3-3.8.2+1.21.1-fabric.jar SHA-1 e075503382f70715ab9fc6f66d603397a86eb3e0 · Modrinth version o3cDn8Vp · Project link unavailable Side not labelled

Pick your setup

Ultimate FPS MAX by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

Ultimate FPS MAX versions and loaders

3 of 3 releases match

Looking for an older file? The official Modrinth project page is in Resources.