I've been playing Xenoblade: Definitive Edition and while I'm definitely enjoying the game, I'm pretty surprised at its performance on the Switch. For the record I have only been playing it docked. This was originally a Wii game released 10 years ago, and they've polished up the character models and uprezzed the whole thing, but it's still full of low-res textures and low-poly environments so it shouldn't be too taxing on the Switch hardware, which can run some pretty nice looking games. I knew about the resolution issue going in and it didn't bother me, but I've also noticed a huge amount of environmental pop in (not big things like walls or mountains but tons of small details like grass or whatever) and even more frustrating, a lot of screen tearing. This can happen even outside of combat, which at least is pretty hectic with a ton of effects. I think I've seen some frame rate drops too, though it can be a bit hard to tell given how busy the screen gets during combat.
I imagine this is a combination of a not great port with not great optimization and the game not being designed to play to the Switch's strengths, but it's a little disappointing that the Switch isn't running this thing buttery smooth. I know the 3DS version was compromised but this WAS a game that could run on the New 3DS, which is not exactly a powerhouse system.
The issues aren't enough to keep me from enjoying the game, but I have a pretty high tolerance for this sort of thing and it's still been distracting.