
Modrinth · Minecraft modpack
Fastium (Ultra Fast)
Extreme amount of optimization that doesn't affect visuals
Quick answer
Which Fastium (Ultra Fast) release should I use?
Fastium (Ultra Fast) 1.3.2 is a complete pack release for 1.21.1 with Fabric 0.16.7. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 49 mods in this pack file.
Pack setup
How should I set up Fastium (Ultra Fast) for players and a server?
Use Fastium (Ultra Fast) 1.3.2 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.
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.
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 Fastium (Ultra Fast)?
Fastium (Ultra Fast) 1.3.2. Change the pack release and its contents or setup may change too.
The selected pack release is Fastium (Ultra Fast) 1.3.2. That file is for Minecraft 1.21.1 with Fabric 0.16.7. It contains 49 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 Fastium (Ultra Fast)?

https://www.youtube.com/watch?v=BbkAQ_vHNtA
Important
There is a VULKAN version that replaces some mods, THIS VERSION IS AN EXPERIMENTAL VERSION THAT USES VULKAN INSTEAD OF SODIUM, IT INCREASES FPS BUT HAS NO SHADER SUPORT AND IT MAY NEED RELATIVE NEW GPUS
In beta versions there may be some unactive mods, if you enable them your game may crash
Older versions may have some utility or decoration modifications, while newer ones only focus on performance. These changes are made from 1.21
What?
Incredibly Optimized experience with some non game chanaging stuff, zoom, bug fixes and too many FPS
Why?
Made by an optimization paranoic for optimization paranoics
How much performance?
Up to 1500 FPS at 32 render distance
Spoiler
on an rtx 3060 at 1080p with opened browser and windoed mode
It includes zoom, some hunger and shulkerbox info, texture and model compatibilizers, and borderless fullscreen.
Shaders and stuff?
It includes shader loader and resource pack compatibilizers for resource packs with models or animations
THE MOD CONTAINS A DYNAMYC LIGHT THAT MAY LAG ON BAD DEVICES, YOU CAN UNABLE IT FROM THE GAME OR DELETING THE MOD LAMBDYNAMICLIGHTS
Project description from Modrinth.
Mods in Fastium (Ultra Fast) 1.3.2
Open any mod on Modpacks.ch to check its files and dependencies.
b3dbc4fc4acfd98f3f6b62bbb4e641ed4df915e8 · Modrinth version 78P98rac · Project link unavailable Server onlya50dbf3cd82821e92a6db81fa893d9373c3b5447 · Modrinth version htKsmrXC · Project link unavailable Client onlydfa517fdb6e3fd2893f5d40f2c06cf01fb2a5db1 · Modrinth version oeSOphtG · Project link unavailable Client onlyc2e7bdcac87c6067b800b48fd262ad3d4ef11a6c · Modrinth version SCuUPNB5 · Project link unavailable Side not labelled2b68d2bd507cd9f45fdd637ba32e8a47de6bda35 · Modrinth version dPliWter · Project link unavailable Side not labellede9bee514d7138a3dc5c0f940efe76441f68dacf6 · Modrinth version No0FqbjC · Project link unavailable Client only5d82342a2df53fd6df712bfdd583a811572918a4 · Modrinth version HpMb5wGb · Project link unavailable Side not labelled0979201d1d131a3bf0594060c58da7dcb55aded6 · Modrinth version m350hyy8 · Project link unavailable Client only6fb7d4ec9c2d2dc5b58577324b47671d3e28d7a4 · Modrinth version dO7QNiof · Project link unavailable Side not labelled5a1bc0630be861c9dac83c0be7a3ea0ccc4e70af · Modrinth version nGAANyOn · Project link unavailable Client onlyd81359d77fc7c5437f3e83e519dc2f869300f0cd · Modrinth version HBZAPs3u · Project link unavailable Client onlyef4acec15876eafba8ce1618d2c2a6b3de27e58f · Modrinth version kPbJu8eF · Project link unavailable Client only96681dea147c7622ef25c85e98db18be90c57213 · Modrinth version WyhKYeMf · Project link unavailable Client onlyba0f27b37fe600d3e69953750d1909da88929a9d · Modrinth version thGkUOxt · Project link unavailable Side not labelled54cd3900a904b81bd24c4a35b6577a2ac197b51a · Modrinth version B0fZidZi · Project link unavailable Side not labelled44e6178f00703b887d551fbbe27ba8b34699445e · Modrinth version 24ohs0tI · Project link unavailable Client only9c4bf4fc3292d627fe0eff85a96672a15f27338c · Modrinth version dIGKewCo · Project link unavailable Client only48ee764932d0c8ec81a2223dbe333886938e512c · Modrinth version bwKMSBhn · Project link unavailable Side not labelleda5d103f37f8d6dd30e6085ff32b025fd72aa761f · Modrinth version ZlbHFjxE · Project link unavailable Side not labelledfb42d1e90a6eab0b9177a6355b793d3170fb3543 · Modrinth version S6Fst9jI · Project link unavailable Side not labelled6fa88ccc5399e54f4dea8279ec11e849a52f86c6 · Modrinth version 1jIYgnG2 · Project link unavailable Client only1bf4b5db91f4e6d7a4f94fe2e96525d22df1cacb · Modrinth version Z8VpxxGh · Project link unavailable Client only6481f2b12ec0d4040424b5f78d4b56faaf862ad5 · Modrinth version u9KvDA4s · Project link unavailable Client only73e792eb5f120787becda4b87b6ff18b26caea50 · Modrinth version Acz3ttTp · Project link unavailable Side not labelled0e1e0862a2c4a9f1db19589992b0734f6f196aab · Modrinth version ib1MuM1V · Project link unavailable Client only0dfa8b03ed408fb7fdada29e01cfebba02af1049 · Modrinth version 4SHylIO9 · Project link unavailable Side not labelleda1fc520d6458c3bb592ac46d3d62cf76392c3618 · Modrinth version 2mbrKlX3 · Project link unavailable Side not labelled784bbbe9c64ac9d3d4ad19786c02291e607fcf4e · Modrinth version 5xvCCRjJ · Project link unavailable Side not labelledb8069f2a672abdea1112daa6d716a0e482cf61ea · Modrinth version FUZo6yCk · Project link unavailable Client onlye2d8ee6f75d2b027ae73eafbf9f38c1eb4a35a93 · Modrinth version T1ftCUJv · Project link unavailable Side not labelled6213120772192040a0aeb5c7cfe330c068605b1f · Modrinth version YIfqIJ8q · Project link unavailable Client only38df6e831a3ce2acf6b99f7acda6458178d698ea · Modrinth version SOpqvxVv · Project link unavailable Client only642a672cfc60ff1e1262a39d7e160b1381c5120c · Modrinth version 4sGQgiu2 · Project link unavailable Server onlybbd309efa0fa2c69e0be268ccf06949ca07076a3 · Modrinth version 23vBW8kj · Project link unavailable Client only06ebc672c1bc833b674427d66c3d64036e1e4dcd · Modrinth version 3L83QwKZ · Project link unavailable Client only5a291300cce1fe7c87c43b48205e438c4af0692b · Modrinth version 7oqHYCAB · Project link unavailable Side not labelledc3bdbe71d48559f89651ee2b88928f911a68eebd · Modrinth version 9vefjf6j · Project link unavailable Client onlybc779cab81a74f2b48e371055d0c0e4cea8201f9 · Modrinth version TMFxzCSV · Project link unavailable Client only843905cab87a3167e0663bd856c67f21f5755721 · Modrinth version cdk5ix7D · Project link unavailable Server only7a2b9b23d3d05939f70244401e9c0a796942d13c · Modrinth version DSxKPh7H · Project link unavailable Client onlyf37cbd1faceecb7808234968f6e7a100a5461fa1 · Modrinth version J4n3Uh3Y · Project link unavailable Client only73a4b5e599e55e76bd3a53df55327ea65dd8b472 · Modrinth version wPZETsJM · Project link unavailable Server onlyd5ad3bbc8a75fc2e8f3d957a85aa05f3e8b95fd0 · Modrinth version CEAENzuT · Project link unavailable Client onlyeec213b5fff929d8ff4bd8c0119883b849960654 · Modrinth version zJZY6GYO · Project link unavailable Client only553a67a327490eb7c3dbb14dbfa88ddf4b254aed · Modrinth version Xhg3plg3 · Project link unavailable Client onlya0bcdb56264e8b51e1cf437109df7c7ee74cab4c · Modrinth version mUvDaDZl · Project link unavailable Side not labelled3a1370a4594f1da0d55a55f09d03e2e05c255e4c · Modrinth version fllia1S2 · Project link unavailable Side not labelledd3be53c700591dc76dc504a3640f9b4af24af178 · Modrinth version f9ZVX07g · Project link unavailable Side not labelled2a4c2770b97ec8888eaa4fb9f304e3505b7b42bc · Modrinth version mGFci27z · Project link unavailable Client onlyPick your setup
Fastium (Ultra Fast) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.3
1 loader build1.21.1
1 loader build1.21
1 loader build1.20.6
1 loader build1.20.4
1 loader buildMade local changes? Try them in a copied instance before touching a world you care about.
Recent files
Fastium (Ultra Fast) versions and loaders
Looking for an older file? The official Modrinth project page is in Resources.