
Swiftly
A smooth, optimized vanilla Minecraft experience with essential performance improvements.
About this Modpack

A lightweight Fabric modpack built for one purpose: make Minecraft feel smooth while staying close to vanilla.
Swiftly focuses on high FPS, stable gameplay, and “Minecraft-should-have-this” quality-of-life — without bloating your instance with unnecessary content mods.
Perfect for mid-range and low-end PCs, and also great as a clean base for your own modpack.
✨ Why Swiftly?
✅ Fast & Smooth
- Major FPS improvements and reduced stutter
- Better chunk/tick performance for a more stable experience
✅ Vanilla-First
- No gameplay overhaul, no extra progression
- Keeps the vanilla look and feel — just better
✅ Shader-Ready
- Full shader support (Iris)
- Runs great both with and without shaders
✅ Lightweight & Compatible
- Minimal mod list, maximum impact
- Great as a starter pack for adding your own mods
🧩 Included Mods (Core)
Performance / Rendering
- Sodium
- Lithium
- Iris Shaders
Quality-of-Life
- AppleSkin
- Mouse Tweaks
- Zoomify
- Gamma Utils (Fullbright)
- Simple Voice Chat (optional, multiplayer-ready)
Libraries (Required)
- Fabric API
- Cloth Config API
- Fabric Language Kotlin
- YetAnotherConfigLib (YACL)
The mod list may evolve over time, but the philosophy stays the same: clean, fast, vanilla-friendly.
⚙️ System Requirements
Minimum (Playable / Vanilla+ Smooth)
- RAM: 4 GB allocated
- CPU/GPU: any modern integrated graphics should work fine
- Works best without shaders
Recommended (Smooth 1080p / Optional Shaders)
- RAM: 6 GB allocated
- Dedicated GPU recommended for shaders
Tip: If you play with shaders, start with a lightweight preset and adjust render distance for stable FPS.

🛠️ Installation
- Install Fabric for your Minecraft version
- Download Swiftly from Modrinth
- Import the pack into your launcher (Modrinth App / Prism / ATLauncher)
- Allocate 4 GB RAM minimum (6 GB recommended)
- Launch and enjoy 🚀
🚀 Quick Optimization Tips
- Lower Render Distance if you get stutters (try 6–10)
- Turn Clouds OFF for free FPS
- Keep Particles on “Decreased” for smoother fights
- If shaders are enabled: reduce Shadow Quality first
📌 Notes
- This pack is intentionally minimal.
- Suggestions are welcome — performance and stability always come first.
Minecraft as it should feel: clean, fast, and smooth.
Available Versions
How to Set Up a Swiftly Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Swiftly). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Swiftly" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
Swiftly server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a Swiftly server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).
Can I add custom mods to Swiftly without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
Swiftly server lagging – performance tips
1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
Similar Modpacks
Rent Swiftly Server
Start your own server with automatic modpack installation.
Details
- License
- LicenseRef-All-Rights-Reserved
- Server-side
- Unsupported
- Client-side
- Required
Supported Versions
Start your Swiftly Server now
From €8.00/month with 6 GB RAM for the best performance.
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