LatencyFleX Is An Open-Source, Vendor-Agnostic Alternative To NVIDIA Reflex

Written by Michael Larabel in Linux Gaming on 5 January 2022 at 05:48 AM EST. 11 Comments
NVIDIA Reflex is an SDK for game developers for measuring and reducing rendering latency. But now there is an alternative, open-source implementation of those APIs that can work across drivers/vendors while still helping to reduce rendering latency: meet LatencyFleX.

LatencyFleX is a vendor/game agnostic latency reduction middleware solution that can be used as a drop-in replacement to NVIDIA Reflex usage. LatencyFleX can work with Windows games running on Linux under Steam Play via Proton-NVAPI integration. There is also experimental support for directly hooking into Unreal Engine 4 and Unity games.

NVIDIA's overview of their Reflex SDK.

This independently developed, open-source project has been tested with games like Ghostrunner, Splitgate, and Overwatch that support NVIDIA Reflex.


For those interested in learning more about this new open-source project there is the LatencyFleX GitHub. This blog post by Tatsuyuki Ishi covers the pursued approach for vendor-agnostic game rendering latency reduction while working with (theoretically) any game that supports NVIDIA Reflex. Interesting work!
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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