There's no point denying that the Switch version will run better. It will obviously run better. But I very much doubt that Nintendo will release a game with a catastrophic framerate. And I don't think this is fanboysm talking, but as long as I remember that never happened before, so with a main entry of the Zelda franchise, I really can't see that happenning tbh XD. Still, nowadays people are really... "nitpicker" about framerate issues. I remember some comments about the not-stable and awful (literally) framerate on MK8, and in that game is... far from awful XD. The Last Guardian is another example of a game which was "unplayable" for some people, and even if that game was far from ideal, with a lot of framerate issues, it's totally playable and enjoyable imho.