I took blue-dev's code for the orginal arena latency slider mod and modified it so that it only works with local online. You can see the readme on the original repo to get details as to how exactly the mod works.
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Make sure you have skyline installed. It should look like this.(Yuzu currently has an issue with LDN + skyline so check the troubleshooting section below for a workaround) -
Download
liblocal_latency_slider.nrofrom the release page. Place it in the corresponding folder. This is how it should look:%yuzu_folder%/sdmc/atmosphere/contents/01006A800016E000/romfs/skyline/plugins/liblocal_latency_slider.nro
When your in the character select screen (for local online), you can press DPAD left/right to adjust the delay.
Ideally you would want to use this on an emulator like yuzu and combine it with the 120 fps mod. This will give you very close to native delay when playing online on LDN.
Currently there is an issue with playing local online with skyline on yuzu that requires a workaround:
- Download this online fix: https://drive.google.com/file/d/1NX8Cbhax3vafTPUpp7r401oZea-Wtmi5/view
- Place the files in
%yuzu_folder%/sdmc/atmosphere/contents/01006A800016E000/exefs/ - Open yuzu but DONT connect to yuzu LDN yet. First start smash.
- Once your in the smash main menu you can connect to yuzu LDN. Itll give you a warning that the game is already running which you can ignore.
- Open the local wireless menu and play.
I haven't tested this mod with Ryujinx yet but I'll update this readme if I get around to testing it.