Faster Decompression
🟡 Updated this year⚠️ Install Order · 5 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview
🔍 Analysis
- 👍 1.4% endorsement rate — high engagement, a strong quality signal
- ✅ Updated 7 days after the latest game patch — actively maintained
- 🏆 #2 of 36 Utilities mods in this game by downloads
📋 About This Mod
This is the Skyrim version of my Fallout 4 mod and updates the decompression libraries that Skyrim uses to more modern, optimised versions:
-
[]Zlib > Zlib-NG + Libdeflate[/]
[]LZ4 > LZ4 1. 10[/]
Just install and enable with your favorite mod manager and you should be good to go.
For the ini file:
bEnableLogging: if the mod will create a log file in Documents\My Games\Skyrim Special Edition (or Skyrim VR)\F4SE. This is turned off by default, if you want to see information and stats about what the mod does you can turn this on by opening fastdecompress.ini and change bEnableLogging=1
bBaselineMode: This turns off the mod except for the logging part. if you want to see the difference between using the normal game decompression and the new one of this mod, you can set bBaselineMode=1 in fastdecompress.ini which makes the mod only capture data throughput in the log, without replacing the decompression libraries.
bLazyZlibInit: This is a diagnostic setting that turns off lazy Zlib Initialisation that got introduced in 1. 4. There's no need to change this normally.
To further speed up loading you can also try
Mod inspiration:
WallsoBG - Zlib Updated
Framework and decompression:
SKSE Team - Skyrim Script Extender
Powerof3 - CommonLibSSE
CharmedBaryon - CommonLibSSE-NG (unified SE/AE/VR in a single DLL)
Eric Biggers - Libdeflate
Zlib-ng contributors - Zlib-ng
Yann Collet - LZ4
Faster Decompression replaces Skyrim's outdated decompression libraries with modern alternatives, improving loading times. It's a universal plugin supporting Special Edition, Anniversary Edition, and VR, making it a simple performance boost for any player.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with 1,937 endorsements and over 113k downloads
- One plugin covers SE, AE, and VR, so no need for version-specific patches
- Direct performance improvement to loading times without touching visuals or gameplay
⚠️ Cons
- Potential compatibility risk with other mods that alter the same decompression libraries
- Performance gains may vary depending on your system and mod load order
- No detailed documentation on exactly which libraries are replaced, so troubleshooting could be tricky
For Skyrim players on SE, AE, or VR who want faster loading screens without changing gameplay or visuals. If you're on an older version or use mods that heavily modify game files, you might want to test carefully.
💡 Beginner Tips
- Place this mod early in your load order to ensure it loads before other mods that might conflict.
- If you're using a mod manager, let it handle the file placement to avoid overwriting issues.
- Test loading times in a few different areas to see the improvement before adding more mods.
📊 Mod Details
- Game
- Skyrim Mods
- Author
- Asciim0v
- Version
- 1.4.1
- Downloads
- 140,575
- Endorsements
- 2,033
- Category
- Utilities
- Created
- 3/13/2026
- Updated
- 8/27/2026
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Skyrim Mods
Download from Nexus.
📖 Full step-by-step install guide for Skyrim →
Visit the official mod page for specific installation instructions for this mod.
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