HTP CIT Resewn Optimizer
A client-side performance patch that fixes memory leaks and reduces lag caused by the mod CIT Resewn
About this Mod
CIT Resewn has two issues in large modpacks. First, it re-evaluates custom item textures every frame even when nothing has changed — this causes unnecessary CPU usage when browsing large inventories or EMI item grids. Second, it leaks over 1 GB of RAM per session by allocating objects into every ItemStack that are never freed.
This is a patch for https://modrinth.com/mod/cit-resewn
What does HTP CITOptimizer do?
Caches CIT evaluation results so repeat lookups are skipped, and fixes a massive memory leak.
Significantly reduced GC pressure from eliminated per-frame allocations.
Lower CPU usage when browsing large inventories or EMI item grids.
Your client will no longer freeze, crash, or lag after hours of gameplay requiring a restart due to CITResewn.
We were experiencing memory climbing steadily until it hits the heap limit causing stutters multiple times per day most noticable when relogging on servers.
Before HTP CITOptimizer:
After HTP CITOptimizer:
Created by the team at https://www.hacktheplanet.now
Available Versions
How to Install HTP CIT Resewn Optimizer on Your Client
Install the Mod Loader Locally
Install fabric for your local Minecraft version.
Download the Matching File
Choose the HTP CIT Resewn Optimizer file for fabric and Minecraft 1.20.1.
Install Mod
Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Does HTP CIT Resewn Optimizer need to be installed on the Minecraft server?
No. Modrinth marks HTP CIT Resewn Optimizer as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.
Which version and loader does HTP CIT Resewn Optimizer require?
Use a file for fabric and your exact Minecraft version. Supported versions include 1.20.1. Files for different loaders are not interchangeable.
HTP CIT Resewn Optimizer is not working – what should I check?
First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.
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Minecraft Server for Your Group
HTP CIT Resewn Optimizer stays on your client. Host a compatible world for your group.