I had the NES Remix vol1 on my WiiU, bought that as it came out, also the last download I think I did too. Try as I may with that game I kept blowing obvious timing based things (which is most of the game, it's like wario ware meets the NES) I know for a fact I don't suck at as I have/had the originals still. I eventually maybe with just 20% of the stars got pissed off and put it away for good.
I got in the mail last week the Ultimate NES Remix I picked up new online. I've only played it twice so far, but I've already racked up stars up to around 80~ as I last unlocked Punchout. Other than just me being slow on one event I've pulled 3 stars or even 3 rainbow stars(mix) on anything I've done so far. It handles like an NES game, not an NES game caught in a time distortion.
Has anyone else noticed this who has the game on 3DS? I find it very interesting because I'm fairly sensitive to lag, and I had to do a lot of research when I had to replace my TV a year ago due to an accident finding one with a 25ms input lag rating on displaylag.com's database (the best until you get into the sub-20ms special processor expensive Sony tvs at the time.) On that one I can pull off tricky timing based stuff in stock mode in most cases, the few rarities like a music timing game or a space shooter, game mode takes the display lag even lower so it's good either way. I know it's not in my head so I'm wondering if the Wii game just wasn't coded or optimized well as it was awful on the controller and not much better on the TV.