FPS Optimization Build for Minecraft 1.21.4
This modpack significantly boosts Minecraft's performance and stability, making the game smoother and more responsive.
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- 172 views
- 1 reviews
- 5.0 1 reviews
- Updated
- Updated 05.10.2026
- 1.21.4
Fabric- Client
About the FPS Optimization modpack
The "Maximum FPS" modpack is made for those who want to enjoy Minecraft without delays and frame drops. It includes a set of carefully selected mods that optimize various aspects of the game, from rendering to chunk loading and memory management.
Thanks to smart algorithms and fixes, you can play comfortably even if your computer isn't particularly high-performance. Forget about stutters and enjoy stable FPS in any conditions.
What's inside:
- Prism Performance — Adaptive optimization for smooth FPS.
- Entity Culling — Hides invisible blocks and entities, reducing load.
- FerriteCore — Reduces the game's RAM usage.
- Better Render Distance — Improves render distance without performance loss.
- Smoothgl — Removes micro-freezes and improves overall smoothness.
- Lazy Chunk Load — Provides smooth chunk loading without jerks.
- ModernFix — Comprehensive bug fixes and memory usage optimization.
How to install FPS Optimization
Install Millida Launcher
The launcher is free: download it at millida.net/launcher and sign in with any nickname.
Click “Install” on this page
The launcher opens and installs the modpack for Minecraft 1.21.4 on Fabric automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.
Minecraft 1.21.4 runs on Java 21: with a different Java version the game may close right after launch.
Versions
With dependencies
| Minecraft | Loader | File | Actions |
|---|---|---|---|
| 1.21.4 | Fabric | 1 | |
| 1.21.4 | Fabric | 1 |
FAQ
Which Minecraft versions does FPS Optimization work on?
Only Minecraft 1.21.4: there are no files for other versions.
Is FPS Optimization for Forge or Fabric?
Only for Fabric: 1.21.4.
Which Java does FPS Optimization need?
Minecraft 1.21.4 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.
How do I download FPS Optimization?
With Millida Launcher: it installs FPS Optimization into a modpack by itself, for the right game version and loader. The launcher is free.
Reviews
How do you like FPS Optimization?
- 67original6 days ago
