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CurseForge · Minecraft mod

Lagless: FPS Optimizer

LaglessMod is an optimization mod for Minecraft 1.20.1 that boosts FPS and reduces lag on low-end PCs by adjusting rendering, entities, particles, and game calculations.

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Quick answer

Which Lagless: FPS Optimizer release matches 1.21.1 Forge?

Updated 3 months ago
Best match for your filters laglessmod-beta-1.0.5.jar
Game version 1.21.1
Loader Forge

Lagless: FPS Optimizer laglessmod-beta-1.0.5.jar targets 1.21.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Lagless: FPS Optimizer required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

What else does Lagless: FPS Optimizer laglessmod-beta-1.0.5.jar need?

laglessmod-beta-1.0.5.jar on 1.21.1 Forge. Every mod below is checked against that same setup.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Lagless: FPS Optimizer without breaking your instance.

Built for Lagless: FPS Optimizer laglessmod-beta-1.0.5.jar on 1.21.1 Forge. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use laglessmod-beta-1.0.5.jar. It targets 1.21.1 with Forge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside laglessmod-beta-1.0.5.jar. It opens that exact file at the source.

About this project

What does Lagless: FPS Optimizer add?

LaglessMod

LaglessMod is an optimization mod designed to revive old PCs and ensure smooth gameplay in Minecraft 1.20.1. Unlike other mods that simply tweak graphics settings, LaglessMod alters the game's internal logic to prevent useless processing and render calls.

🚀 Looking for better server performance?
Try LagLess: Server Optimizer to reduce lag and lower RAM usage, helping your server run smoother and more efficiently.

⚡ TESTED RESULTS

Performance matters. In our practical tests, the Super Fast Mode delivered a massive boost of over +100 FPS while mining and exploring underground! By cutting unnecessary rendering below the player, your GPU can finally breathe.


🚀 Key Features

LaglessMod introduces a new button directly in your Video Settings menu, allowing you to switch between 3 performance profiles in real-time:

🔴 SUPER FAST (Potato Mode)

The ultimate solution for low-end PCs.

Vertical Culling: The mod stops rendering blocks and caves deep below you. If you can't see it, your computer shouldn't process it.

Dynamic Fog: To prevent visual glitches from the Vertical Culling, a smart fog system is applied. It clears up when you look at the horizon (to see far away) and closes in when you look down (to hide the void below), ensuring a seamless experience.

Aggressive Culling: Cuts rendering distance for mobs and particles by half.

⚠️Note: super fast mode may cause visual bugs in certain parts of your world, but this will be fixed soon.

🟡 BALANCED (Recommended)

The perfect sweet spot for gameplay.

Smart Entity Culling: Entities that are far away or hidden behind walls stop consuming CPU power.

Smart Particle Culling: Rain, explosions, and redstone particles are optimized to prevent lag spikes without disappearing completely.

No Visual Glitches: The game looks beautiful, just faster.

🔵 VANILLA

Default Minecraft behavior.


🛠️ Under the Hood

LaglessMod uses advanced Mixins to optimize the game engine:

Fast Math: Replaces Minecraft's heavy trigonometric calculations (Sin/Cos) with ultra-fast pre-calculated tables.

Auto-RAM Cleaner: Automatically calls the Garbage Collector every 5 minutes to free up unused memory and prevent long freeze spikes.

Particle Logic: Deletes particles that are too far from the player to be seen, saving CPU cycles during heavy weather or battles.


🔧 How to Use

  1. Install Minecraft Forge 1.20.1.

  2. Drop the LaglessMod.jar into your mods folder.

  3. Launch the game.

  4. Go to Options > Video Settings.

  5. Click the "Mode" button in the top-right corner to toggle between profiles (Super Fast / Balanced / Vanilla).


👨‍💻 Credits

Created by Ryosukuna. Optimized for Minecraft 1.20.1 (Forge).

🇧🇷

LaglessMod
LaglessMod é um mod de otimização projetado para reviver PCs antigos e garantir jogabilidade suave no Minecraft 1.20.1. Diferente de outros mods que apenas ajustam as configurações gráficas, o LaglessMod altera a lógica interna do jogo para evitar processamento e chamadas de renderização desnecessárias.

⚡ RESULTADOS TESTADOS
Performance importa. Em nossos testes práticos, o Modo Super Rápido entregou um aumento massivo de mais de 100 FPS enquanto minerávamos e explorávamos cavernas! Ao cortar renderizações desnecessárias abaixo do jogador, sua GPU finalmente pode “respirar”.

🚀 Principais Funcionalidades
LaglessMod adiciona um novo botão diretamente no menu de Configurações de Vídeo, permitindo alternar entre 3 perfis de performance em tempo real:

🔴 SUPER RÁPIDO (Modo Batata) – A solução definitiva para PCs fracos

Culling Vertical: O mod para de renderizar blocos e cavernas muito abaixo do jogador. Se você não consegue ver, seu computador não deveria processar.

Névoa Dinâmica: Para evitar glitches visuais do Culling Vertical, um sistema de névoa inteligente é aplicado. Ele desaparece quando você olha para o horizonte e se fecha quando olha para baixo, garantindo uma experiência suave.

Culling Agressivo: Reduz a distância de renderização de mobs e partículas pela metade.

Obs: O modo super rápido pode apresentar bugs visuais em certas partes do seu mundo, mas isso será resolvido em breve.

🟡 BALANCEADO (Recomendado) – O ponto ideal entre performance e qualidade

Culling Inteligente de Entidades: Entidades distantes ou escondidas atrás de paredes param de consumir CPU.

Culling Inteligente de Partículas: Chuva, explosões e partículas de redstone são otimizadas para evitar quedas de FPS sem desaparecer completamente.

Sem Glitches Visuais: O jogo continua bonito, só que mais rápido.

🔵 VANILLA – Comportamento padrão do Minecraft.

🛠️ Nos Bastidores
LaglessMod usa Mixins avançados para otimizar o motor do jogo:

Fast Math: Substitui cálculos trigonométricos pesados (Sin/Cos) por tabelas pré-calculadas ultra-rápidas.

Limpador Automático de RAM: Chama automaticamente o Garbage Collector a cada 5 minutos para liberar memória não usada e prevenir travamentos longos.

Lógica de Partículas: Remove partículas que estão muito distantes do jogador para economizar ciclos de CPU durante tempestades ou batalhas intensas.

🔧 Como Usar

Instale o Minecraft Forge 1.20.1.

Coloque o arquivo LaglessMod.jar na pasta mods.

Inicie o jogo.

Vá em Opções > Configurações de Vídeo.

Clique no botão “Mode” no canto superior direito para alternar entre os perfis (Super Rápido / Balanceado / Vanilla).

👨‍💻 Créditos
Criado por Ryosukuna. Otimizado para Minecraft 1.20.1 (Forge).

Project description from CurseForge.

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