CurseForge · Minecraft mod
APTweaks: Items (11.x Classic)
Item clustering (fallen blocks, experience orbs, ...) and garbage cleanup.
Quick answer
Which APTweaks: Items (11.x Classic) release should I use?
APTweaks: Items (11.x Classic) adaptive_performance_tweaks_items_1.21.1-11.6.1.jar targets 1.21.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is APTweaks: Items (11.x Classic) required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does APTweaks: Items (11.x Classic) adaptive_performance_tweaks_items_1.21.1-11.6.1.jar need?
adaptive_performance_tweaks_items_1.21.1-11.6.1.jar. Change the file and its required mods may change too.
Install APTweaks: Core (11.x Classic) first. We found matching files for this game-version and loader setup. 4 come through another mod in the chain.
4 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add APTweaks: Items (11.x Classic) without breaking your instance.
Built for APTweaks: Items (11.x Classic) adaptive_performance_tweaks_items_1.21.1-11.6.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use adaptive_performance_tweaks_items_1.21.1-11.6.1.jar. It targets 1.21.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install APTweaks: Core (11.x Classic) first. We found matching files for this game-version and loader setup. 4 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside adaptive_performance_tweaks_items_1.21.1-11.6.1.jar. It opens that exact file at the source.
About this project
What does APTweaks: Items (11.x Classic) add?
♻️ Adaptive Performance Tweaks: Items (11.x Classic)
ℹ️ APTweaks 11.x Classic Module
This module is part of the classic Adaptive Performance Tweaks 11.x module system. Existing 11.x modpacks can continue using it.
For new installations and future feature updates, use the new all-in-one version: Adaptive Performance Tweaks
⚠️ Do not install this module together with Adaptive Performance Tweaks 12.x or newer.

Server-side Forge module that keeps TPS/FPS stable by clustering dropped items and XP orbs and by cleaning up garbage entities. Works standalone on the server; clients are optional.
Status ✅
Stable 11.x Classic / LTS module for existing Forge modpacks.
Critical fixes and compatibility updates may be provided when needed. New features, new loader support, and modern Minecraft version updates are developed in the new all-in-one Adaptive Performance Tweaks version.
Requirements 🧩
Requires Adaptive Performance Tweaks: Core
Features ✨
- Server-side only; clients do not need to install the mod.
- Pick only the modules you want; highly configurable via config files.
- No core/mixin patches → broad mod compatibility.
- Built-in debug info to see what the optimizer is doing.
⚠️ Always keep regular backups of your world.
Item & XP optimization ♻️
- 🧲 Merges nearby dropped items to reduce entity count.
- ✨ Clusters XP orbs in range and combines their values.
- 🧹 Periodically cleans up excess/oldest items and adapts item lifespan to server load.
- ⚡ Mitigates lag from large farms, mining sessions, and big TNT explosions.
- 🔧 Pure server logic; no custom items are introduced.
Bundled modules 📦
Want everything at once? Install the bundled version:
Project description from CurseForge.
Pick your setup
APTweaks: Items (11.x Classic) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.21
1 loader build1.20.6
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader build1.20.1
2 loader builds1.20
1 loader build1.19.4
1 loader build1.19.3
1 loader build1.19.2
1 loader build1.19.1
1 loader buildShowing the newest 12 of 14 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
APTweaks: Items (11.x Classic) versions and loaders
adaptive_performance_tweaks_items_1.21.1-11.6.1.jar
10 Mar 2026
11.6.1
adaptive_performance_tweaks_items_1.21.1-11.6.1.jar
10 Mar 2026
adaptive_performance_tweaks_items_1.20.1-11.6.1.jar
10 Mar 2026
11.6.1
adaptive_performance_tweaks_items_1.20.1-11.6.1.jar
10 Mar 2026
adaptive_performance_tweaks_items_1.19.2-11.6.1.jar
10 Mar 2026
11.6.1
adaptive_performance_tweaks_items_1.19.2-11.6.1.jar
10 Mar 2026
adaptive_performance_tweaks_items_1.18.2-11.6.1.jar
9 Mar 2026
11.6.1
adaptive_performance_tweaks_items_1.18.2-11.6.1.jar
9 Mar 2026
adaptive_performance_tweaks_items_1.21.1-11.6.0.jar
3 Mar 2026
11.6.0
adaptive_performance_tweaks_items_1.21.1-11.6.0.jar
3 Mar 2026
adaptive_performance_tweaks_items_1.20.1-11.6.0.jar
2 Mar 2026
11.6.0
adaptive_performance_tweaks_items_1.20.1-11.6.0.jar
2 Mar 2026
Looking for an older file? The official CurseForge project page is in Resources.