Spirity BoostXModpacks · 1.21 – 26.xA lightweight Fabric optimization modpack focused on maximum FPS, smooth gameplay, and reduced lag for low-end, mid-range, and high-end devices.

Smooth Gameplay, Engineered to Perfection
Direct download from Modrinth · 35,649 downloads
Ultramodern optimization is a modpack made by MRxue. Smooth Gameplay, Engineered to Perfection.
It supports Minecraft 1.12 – 26.x. It has been downloaded 35,649 times on Modrinth. The last update came out on Sep 15, 2026.
Ultramodern optimization has had 25 releases on Modrinth since Sep 23, 2025. 24 of them came out in the past year. The newest is 2.5.7, released on Sep 15, 2026. It is made for Minecraft 1.20.1. It runs on Forge. The download is 55.1 MB.
| Version | Released | Minecraft | Type |
|---|---|---|---|
2.5.7 | Sep 15, 2026 | 1.20.1 | Release |
0.6 | Sep 15, 2026 | 1.21.1 | Release |
0.1 | Aug 27, 2026 | 26.1.2 | Beta |
2.5.6 | Aug 27, 2026 | 1.20.1 | Release |
0.5 | Aug 27, 2026 | 1.21.1 | Release |
中文版
Ultramodern Optimization features several highly customizable optimization configuration presets, allowing you to adjust settings based on personal needs in different scenarios. You can also manually disable unwanted mods within the DLC Manager to better tailor the modpack to specific requirements. The modpack includes a built-in new categorization system and offers a one-click option to enable server-side optimizations within the presets.
Ultramodern Optimization's default modules are sufficient for small modpacks. For large modpacks, you may need to manage settings within the DLC Manager or enable relevant optimizations in the presets.
Friendly Reminder: Optimization mods can only better utilize remaining hardware performance compared to vanilla; their effectiveness varies by hardware and could even result in negative optimization. The purpose of this optimization pack is to provide a smooth gaming experience for players in local multiplayer/modded environments. If you are a single-player client or a vanilla player, simply combining lighter mainstream optimization mods like Embeddium might already be sufficient.
In the new version of the Forge 1.20.1 2.5 modpack, the client itself is already highly lightweight and compatible with most modpacks. If you need to adjust settings in the DLC Manager, you should pay more attention to compatibility issues!
As is well known, Sodium is almost the only optimization mod that significantly boosts vanilla framerates. Combining more optimization mods aims to achieve stable framerates in multi-mod environments comparable to vanilla (meanwhile, the author is actively working on compatibility and creating optimized versions of modpacks).
The following tests were conducted in 1.20.1 Forge:
Test Configuration:
CPU: Intel i7-4710HQ (4 Cores, 8 Threads, 2.5GHz)
GPU: NVIDIA GTX 860M (Dedicated Graphics)
Resolution: FHD (1080P)
Vanilla Settings:
Render Distance: 8 chunks
V-Sync: Off
Simulation Distance: 5 chunks
Results:
Vanilla: Approached 100 FPS.
With Optimization Pack: Reached 350 FPS.
Improvement: Approximately 250% increase.
Vanilla: Unoptimized
Most optimization packs simply select mods for optimization without any unique features. However, in Ultramodern Optimization, the author has adopted an integrated optimization system, and the package includes several optimization configuration presets. Most optimization mods can be incorporated into modpack clients.
For 1.20.1 Forge (Optimization Pack version 2.5.2): Detailed mod compatibility is provided.
Provided modpack optimization presets
Provides more perfect optimization presets
The image above shows the optional optimizations in the DLC Manager, with most compatibility issues clearly labeled.
[NRG] Random Gun Brawl, Vanity Works, [MYBL] Profane, Infinite Craftsmanship, [FIB] Fungal Profanity, Daydream Survival, [PNAA] Nexus of All: Age of Disorder, [SiF] Roam the Wild, [CY3] Chapter of the Brave III, [TTF] Oriental Tales of Craft, [NOD] The Devil's Reverse Scale, [EJ] Journey to the Past, [IAM] Ice and M, Tale of the Ice Age, [SMNH] SMNH: New Horizons, [TGA] The Ascended: Aria of the Celestial Steps, [HATI] Primordial Ascension, [DTR] Death Tunnel: Return to the Dead, [ALONG] The Lone Star: The Witch's End. I am very grateful to these modpacks for merging my optimizations.
The optimization and compatibility of this pack would not be possible without the testing contributions of community mod authors. Special thanks to authors Awei啊 and Argon4W, community contributors zjmt777, 阿飞L, QQ user: 周延杰 (who discovered the Iron Magic issue), and many others for their testing and suggestions.
This optimization pack also relies heavily on the contributions of major modpack authors (who supported my optimization pack):
First batch of supporters: NimShade, Silentmo, FXT1206
Second batch of supporters: 某不知名传送门方块, 如梦方醒, molomiu, Lovin
Third batch of supporters: 工程师April, CoZo (provided DLC Manager), 托尼也是INFJ, 稀神旭东, RRainbow, 枫桦灰桥, 古明地觉觉子, 折纸散人, 老本願, 奕暃, 永远的安东尼, LINNAI
Special Thanks:
Author Lovin provided immense help with the compatibility of the optimization pack, and 老本願 provided promotion.
Written by MRxue. Read it with pictures on Modrinth.
This modpack runs on Forge and NeoForge for Minecraft 1.12 – 26.x. The launcher you install it with sets that up for you.
Download the .mrpack file from Modrinth.
Open it with a launcher that reads .mrpack files, such as the Modrinth App or Prism Launcher: it makes a new instance with every mod and setting of the pack.
Give the instance enough memory: most modpacks want 4 to 8 GB.
To play it with friends on a server, use the server files of the modpack if its page offers them; otherwise install the same mods on the server.
Full guide: How to install Minecraft mods
| Resource | Downloads | Versions | Last update | Price |
|---|---|---|---|---|
| 36K | 1.12 – 26.x | Sep 15, 2026 | Free | |
| 46K | 1.21 – 26.x | Aug 3, 2026 | Free | |
| 33K | 1.21 | Jun 5, 2026 | Free | |
| 514K | 1.16 – 26.x | 12 days ago | Free |
Yes. Ultramodern optimization supports Minecraft 26.x. All supported versions: 26.x, 1.21, 1.20, 1.16, 1.12.
Yes. Ultramodern optimization is free to download from Modrinth.
Yes. The last update came out in the past day.
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