Modded servers lag! Make your server eat a chili to speed it up!
Mod Overview:
- Lithium - fixes block and entity lag
- Krypton - optimizes server networking stack
- Chunky - progenerate chunks
- C2ME - optimizes chunk generation
- Debugify - patch many known bugs
- Ferrite core - optimize server memory usage
- Noisium - optimizes world generation
- ModernFix - optimizes all kinds of things
- VMP - optimizes player lag
- Let Me Despawn - despawns culled mobs (can affect survival gameplay)
- Alternate Current - optimizes redstone (will affect vanilla redstone)
Old Mods
- Starlight - optimizes Minecraft light engine
- Spark - performance profiling tools
Best server java arguments:
-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -XX:G1NewSizePercent=40 -XX:G1MaxNewSizePercent=50 -XX:G1HeapRegionSize=16M -XX:G1ReservePercent=15 -XX:InitiatingHeapOccupancyPercent=20 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true
(These are good for ram above 10gb)
This modpack contains experimental mods (C2ME & Krypton), you have been warned
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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: Opens on Modrinth — not every file is mirrored on our own servers.
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 Project Capsaicin - 2.0.0.mrpack
- Download size: 2 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.