Reflex AntiLag

Reflex AntiLag

Implementing Nvidia reflex in Minecraft to reduce latency

by
491.7K Downloads
fabricforgeneoforgeoptimization
Configure a Compatible Minecraft Server

Screenshots

Reflex AntiLag Screenshot 1

About this Mod

This mod uses the Nvidia Reflex principle to reduce rendering latency in Minecraft, automatically locking the frame by estimating the CPU and GPU time.(Allow any GPU to use)

There are two options in the settings: one is a toggle switch, and the other is to reduce waiting time.
The waiting time is reduced in nanoseconds. If enabling Reflex causes a drop in GPU utilization, you can increase the value slightly to raise the GPU usage to around 100%. However, increasing the value too much will lead to higher latency.
Sometimes, the algorithm may estimate incorrectly, resulting in delay being too short and causing rendering queues to pile up, which increases rendering latency. In such cases, you can use negative values to increase the waiting time and reduce the latency.

此mod在Minecraft中参考Nvidia Reflex原理降低渲染延迟,通过估计cpu以及gpu时间从而自动锁帧。(允许任意gpu使用)

选项中有两个选项,一个是切换开关,一个是减少等待时间。
减少等待时间以纳秒为单位,如果启用reflex后gpu占有率下降,可增加一些数值使gpu占用率上升,使得gpu占用率刚刚好达到100%,如果增加数值过头会增加延迟。
有时可能算法估计错误导致延迟过短造成渲染队列堆积,渲染延迟上升,可使用负数数值增加等待时间,减少延迟。
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Available Versions

Reflex AntiLag 1.0.4release
MC 26.2neoforge
July 18, 2026
Reflex AntiLag 1.0.4release
MC 26.2fabric
July 18, 2026
Reflex AntiLag 1.0.4+mc26.1.2release
MC 26.1, 26.1.1, 26.1.2neoforge
June 28, 2026
Reflex AntiLag 1.0.4+mc26.1.2release
MC 26.1, 26.1.1, 26.1.2fabric
June 28, 2026
Reflex AntiLag 1.0.4+mc1.21.5release
MC 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11neoforge
March 27, 2025

How to Install Reflex AntiLag on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the Reflex AntiLag file for fabric and Minecraft 26.2.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

26.2, 26.1.2, 26.1.1 (+19 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Reflex AntiLag need to be installed on the Minecraft server?

No. Modrinth marks Reflex AntiLag as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does Reflex AntiLag require?

Use a file for fabric, forge, neoforge and your exact Minecraft version. Supported versions include 26.2, 26.1.2, 26.1.1. Files for different loaders are not interchangeable.

Reflex AntiLag is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.

Minecraft Server for Your Group

Reflex AntiLag stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

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

Supported Versions

26.226.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.6+12 more