I'm sure he is using 3dsx version, without kenerhax, then the speed will just be so-so like playing on o3ds with kernelhaxThat's fine if you're not concerned with moving save files around or having any other additional features. It's pretty much on par with all the other Nintendo VC stuff. As long as you don't mind not being able to easily access a raw save file and not having any features beyond it running well and saving, it'll serve you well.
I'm just going off of what a friend has said about running it on his N3DS as I don't have one. He still gets minor slowdowns in areas of minish Cap where there's heavy translucent effects, for example. Nothing drastic, but noticeable. I don't know what nightly he's using, though.
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since you are talking about 9.2 n3ds, you could take advantage of dynamic recompiler and high clock rates, that means 2.5~3 times of the speed overnthat of n3ds without kernel hax.










