Async Pack Scan Mod (26.2, 1.20.1) – Smoother Menu Performance
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download
In vanilla Minecraft, the game regularly scans all resource pack sources to refresh the resource pack list. While this is usually harmless, the scan is performed very frequently in the Resource Pack Organizer screen, which can cause serious performance issues when many resource packs or certain mods are used. Async Pack Scan Mod improves the situation by running the resource pack scan in the background instead of blocking the game, resulting in a much smoother user experience.
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Features:
- Background resource pack scanning
- The game no longer freezes while checking resource packs
- Scanning is done on a separate thread
- Smoother Resource Pack screen
- Reduces lag spikes when opening or resizing the menu
- Keeps the interface responsive even with many packs installed
- Better compatibility with other mods
- Prevents heavy slowdowns caused by mods that extend resource pack processing
- Vanilla-friendly behavior
- Does not change how resource packs work
- Only optimizes
howandwhenthey are scanned
Screenshots:

Async Pack Scan Mod Download Links
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 83361.mcaddon
- Download size: 134 KB
- Download link checked 23 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.