ImmediatelyFast Mod (1.21.11, 1.20.4) – Gameplay Upgrade

ImmediatelyFast is a client-side optimization mod that speeds up immediate mode rendering in Minecraft, available for Fabric, Forge, NeoForge, and Quilt mod loaders. Developed by RaphiMC and first published in October 2022, this lightweight performance mod targets specific rendering bottlenecks that other optimization mods often overlook.

Minecraft's rendering engine has a well-known weakness: immediate mode rendering. Every time the game draws block entities, text, maps, or HUD elements, it processes them one by one instead of batching them efficiently. This creates unnecessary overhead that drags down your frame rate, especially in bases packed with chests, signs, and item frames. ImmediatelyFast tackles this exact problem by optimizing how Minecraft handles these rendering calls. With over 79 million downloads on Modrinth alone, it has become one of the most trusted performance mods in the community — and for good reason. It does one thing and does it well, without touching gameplay mechanics or visual quality.

Key Features of ImmediatelyFast

• Block Entity Rendering Optimization — Block entities like chests, beds, signs, banners, and shulker boxes are some of the most expensive elements to render in Minecraft. ImmediatelyFast batches these draw calls together instead of processing them individually, which can noticeably reduce frame time spikes when you walk into a storage room full of containers.
• Text Rendering Improvement — Every piece of text on screen — from chat messages to item names to sign content — goes through Minecraft's text renderer. ImmediatelyFast optimizes this pipeline so that areas with heavy text rendering, such as busy multiplayer servers with active chat or shops with many signs, run more smoothly.
• Map Rendering Optimization — Filled maps are notoriously heavy on performance, especially when displayed in item frames on walls. Players who build map art galleries or use maps for navigation know the FPS hit all too well. This mod reduces the rendering cost of maps so you can display them without worrying about performance tanks.
• HUD Rendering Enhancement — The heads-up display is redrawn every single frame, including your hotbar, health, hunger, experience bar, and any mod-added overlays. ImmediatelyFast streamlines how these elements are rendered, shaving off overhead that adds up across every frame the game produces.
• Third-Party Mod Rendering Support — Other mods that use Minecraft's immediate mode rendering also benefit from ImmediatelyFast's optimizations. This means mods that add custom block entities, GUI elements, or overlay displays automatically get a performance boost without needing to update their own code.
• Zero Configuration Required — Unlike some optimization mods that require tweaking config files or adjusting settings, ImmediatelyFast works out of the box. Install it and the optimizations apply immediately with no additional setup needed from the player.

Screenshots

How to Install ImmediatelyFast

1. Install a compatible mod loader for your Minecraft version. You can use Fabric, Minecraft Forge, NeoForge, or Quilt Loader.
2. Download the ImmediatelyFast file that matches your Minecraft version and mod loader from the download section below.
3. Locate your Minecraft mods folder. On Windows, press Win + R, type %appdata%\.minecraft\mods and hit Enter. On macOS, go to ~/Library/Application Support/minecraft/mods.
4. Drop the downloaded .jar file into the mods folder. No additional dependencies or library mods are required.
5. Launch Minecraft using the correct mod loader profile. ImmediatelyFast activates automatically — no configuration needed.

Requirements & Compatibility

What's New

• Updated to support Minecraft 26.1, the latest game version.
• Continued compatibility maintained across the full 1.20.x and 1.21.x version ranges.
• NeoForge, Fabric, and Quilt builds all receive simultaneous updates.

Pros and Cons

Alternatives to ImmediatelyFast

• Sodium — A comprehensive rendering engine replacement that overhauls Minecraft's chunk rendering, lighting, and particle systems for major FPS improvements.
• Lithium — Optimizes the game's internal server logic including entity AI, world generation ticking, and block updates without changing any gameplay behavior.
• Entity Culling — Prevents the game from rendering entities and block entities that are not visible to the player, reducing GPU workload in crowded areas.

Download ImmediatelyFast

Always download mods from official sources to stay safe.

Frequently Asked Questions

Is ImmediatelyFast compatible with Sodium?

Yes — ImmediatelyFast works alongside Sodium without conflicts. The two mods optimize different parts of the rendering pipeline, so using them together provides broader performance coverage than either mod alone.

Does ImmediatelyFast work on servers?

Yes, it is a client-side only mod. You can install it in your local mods folder and join any server — vanilla or modded — without the server needing to have it installed.

Do I need Fabric API to run ImmediatelyFast?

No — ImmediatelyFast is a standalone mod with no required dependencies. Simply place the correct version in your mods folder and it will work on its own across all supported loaders.

How much FPS does ImmediatelyFast actually add?

The improvement depends on your hardware and world. Players typically notice the biggest gains in areas with many block entities like storage rooms, map walls, or shops with signs. The mod reduces frame time spikes in these scenarios rather than boosting your overall average FPS number.

Does ImmediatelyFast change how the game looks?

No — ImmediatelyFast is purely a performance optimization mod. It does not alter textures, lighting, colors, or any visual elements. Everything renders exactly the same, just more efficiently under the hood.

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