I am playing on an old 3ds and want the best performance with the least amount of lag. should i play on alternate or the stable version?

also is luma input redirection allowed? it would make recording runs a lot easier especially with my mashing technique.

luma input redirection is that thing that lets you use a controller to control ur 3DS right? If so, that's fine. As for what version to use, the options are linked in resources. Alternate version is 60 FPS though, which might have lag issues (since maintaining 60 fps could be a bit much). Stable version will almost always be a solid 30.