Ah, I can understand your concern. Hyrule Warriors for the 3DS and its stuttering issues were pretty commonly reported unless the game was being played on a N3DS. They might as well have made it N3DS-exclusive but didn't for some reason.
Also want to get Hyrule Warriors but is not at my priority list right now, part of this is because of the stuttering that everybody mention eventually will purchase this title, I really want to increase my 3DS library even if that means that have to sell some of my NES cartridges, this past week sold my second copy of Mega Man 4 for $ 27 bucks at Mercado Libre and yesterday I have published Rockin' Kats for $ 1,475 Pesos which is almost $ 92.00 Dollars and already have three persons that want it, dunno if the price is to low but being honest haven't played this title, only played once just to test it and that's was all.
There is also a PC port that doesn't seem to have slowdown issues as well.
Dude my "PC" is the worst one of all the entire forum, haven't upgraded it since I got married