>>29269456>>29269503>>29269519>>29269520>>29269598>>29269760I have a N3DS, not the xl. Overall the game is relatively smooth, however there are some annimations that hiccup, the one I notice most is the ash greninja transformation (the water sphere and shit-tons of particle effects) however, it's really not horrible. I did notice a hiccup during the sample totem battle, however it wasn't nearly as bad for me, as I've seen it described. (think of the occational lag X and Y would have when zooming up close to the battle occurring) I think overall, if they don't optimize it before release that is playing on the O3DS will give you significantly more lag than playing with the N3DS, however you'll still get some lag on levels of X and Y with the N3DS.
tl;dr
There's lag on both systems, O3DS has it worse because of old hardware, N3DS has lag too, but it's not too different from the lag expereienced in X and Y on the old 3DS. So, damned if you do damned if you don't I guess.