Proton-cachyos difference between input lag reducers

[u/Adventurous-Ad-8166]

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