OptiFine & FPS | ButterFine

OptiFine & FPS | ButterFine

Optimization/FPS and quality of life. A client-like performance pack and now OptiFine alternative - up to 4x FPS Boost

by caela.uk
13.1K Downloads
0 Followers
fabricMC 1.21.8lightweightoptimizationtechnology

About this Modpack

Discord

If you wish to get this pack on MojoLauncher please check out Butterium Mobile

What does this pack do?

ButterFine is a client-like modpack that makes your game as smooth as possible by (in some cases) QUADRUPLING your FPS allowing for smooth gameplay on even the lowest of hardware. In some cases this pack even performs better than both Lunar and Feather.

ButterFine is the official fork of Butterium that adds OptiFine features ontop of the amazing pack that Butterium already is, therefore this pack should be as optimized as can be for everyone.

ButterFine also integrates each mod into it's very own custom-made ButterUI so you shouldn't ever see an ugly config file or bloated menu with thousands of options ever again.

To put it simply, we achieve perfection with performance, quality of life and gameplay all in one pack with less than 40 mods.

Please view the gallery to see more UI, HUD and features

image

^ Low-resolution image of Butterium when minimized to a smaller window

Features

Lightning fast performance - ButterFine has comparable performance to the top performance packs on this platform without being a bloated RAM hog, in some cases we out-perform these packs (especially in multiplayer)

🎮 Cool gameplay/multiplayer features - We have features like freecam, fullbright, version-switching, account switching, resource/shader pack browsing, voice chat and more to ensure that you have more than high FPS

⚙️ Custom settings and GUI's - We use FancyMenu to fine tune our GUIs and integrate mods using our own ButterUI design language

🎮 Custom HUD - We integrate features like keystrokes, time, armor display, co-ordinates and more into ButterFine's HUD, you can drag everything around with ease

📆 Regular updates - Us at ELTE Studios are dedicated to bug-squashing and meeting user needs by adding new features

image

^ Our "Quick Settings" window that is visible on the pause screen and can be moved wherever

image

^ Fullscreeen 1080p version of the Title Screen on GUI Scale 3

Why is this modpack to be compared to a client?

As you can see, we refer to ButterFine as a Client-like modpack. Lets explain why.

  1. Many of our users have switched from using popular clients to using Butterium

  2. The devs make this pack feel as custom made for you as possible (e.g draggable windows, onboarding)

  3. We're working to make this pack integrate each mod to perfection, from custom menus, keybinds and commands, to completely custom mods themselves (coming soon).

  4. We plan to expand to a custom launcher in the future

Credits

Most UI's were created using the amazing tool that is FancyMenu by Keksuccino, this is amazing for modpack creators as it allows custom designs within Minecraft.

Some configs and .jar files were taken/based from Simply Optimized, but not many.

Where do I report bugs/request features?

If you encounter any incompatibilities, missing features or bugs whilst using this modpack please report them to the ELTE Studios official Discord linked below

Discord

Available Versions

ButterFine Beta 2beta
MC 1.21.8fabric5.3K downloads
August 18, 2025
ButterFine OLDalpha
MC 1.20.1fabric4.4K downloads
January 24, 2024

How to Set Up a OptiFine & FPS | ButterFine Server

1

Order Server

Choose at least 6 GB RAM (8 GB recommended for OptiFine & FPS | ButterFine). Based on player count: per 5 players.

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "OptiFine & FPS | ButterFine" and click "Install". The fabric loader and Minecraft 1.21.8 are configured automatically.

3

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

OptiFine & FPS | ButterFine server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a OptiFine & FPS | ButterFine server really need?

Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €7.800000000000001/month).

Can I add custom mods to OptiFine & FPS | ButterFine without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.8). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

OptiFine & FPS | ButterFine server lagging – performance tips

1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.

Rent OptiFine & FPS | ButterFine Server

Start your own server with automatic modpack installation.

Recommended RAM:
8 GB(min. 6 GB)
From 7.80 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
Mozilla Public License 2.0
Server-side
Unsupported
Client-side
Required

Supported Versions

1.21.81.20.1

Start your OptiFine & FPS | ButterFine Server now

From €7.80/month; 8 GB RAM is recommended for best performance.

Configure Server →