Swiftly

Swiftly

A smooth, optimized vanilla Minecraft experience with essential performance improvements.

by LuigiLP
64 Downloads
0 Followers
fabricMC 1.21.11lightweightmultiplayeroptimization

About this Modpack

Swiftly

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.


Instructions

🛠️ Installation

  1. Install Fabric for your Minecraft version
  2. Download Swiftly from Modrinth
  3. Import the pack into your launcher (Modrinth App / Prism / ATLauncher)
  4. Allocate 4 GB RAM minimum (6 GB recommended)
  5. 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

Swiftlyrelease
MC 1.21.11fabric55 downloads
January 16, 2026

How to Set Up a Swiftly Server

1

Order Server

Choose at least 4 GB RAM (6 GB recommended for Swiftly). Based on player count: per 8 players.

2

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.

3

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.

Rent Swiftly Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 8.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Unsupported
Client-side
Required

Supported Versions

1.21.11

Start your Swiftly Server now

From €8.00/month with 6 GB RAM for the best performance.

Configure Server →