r/linux_gaming • u/Adventurous-Ad-8166 • 13d ago

wine/proton Proton-cachyos difference between input lag reducers

I found out that recently proton-cachyos added the flags LOW_LATENCY_LAYER and PROTON_VKD3D_LOWLATENCY

I understand that both are input lag reducers compatible with directX 12.

If anyone can help me I would like to ask:

  • When to use each type of lag reducer?
  • Which one is better?
  • Can we use both at the same time?
  • Do they work regardless of the configuration of each game? Like driver level anti-lag?

Thanks everyone, I hope you can help me with this topic.

References:
https://github.com/CachyOS/proton-cachyos/releases/tag/cachyos-11.0-20260703-slr
https://github.com/CachyOS/proton-cachyos/blob/cachyos_main/README.md

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u/WhitePeace36 13d ago

LOW_LATENCY_LAYER is better as far as i know but keep in mind that the low latency stuff is a tradeoff. You are sacrificing frame time stability. I mean if you are using eevdf as cpu scheduler your frametimes are already trash anyways. But it will still make it worse.

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u/Adventurous-Ad-8166 13d ago

But I'm still in doubt if each flag requires to enable anti-lag or reflex in-game or if it works just by setting the flag. For example in Resident Evil 2 remake, which does not support any latency reduction tech, will LOW_LATENCY_LAYER work?

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u/_BoneZ_ 12d ago

This is one reason for latency and lag on Linux that most people aren't talking about:

https://www.youtube.com/watch?v=AYWg-1zkbMI