The game has some major optimization issues. When using ultrahand on the first island I could see the switch struggle and go from 30 to like 5 fps for a second or two. Again , on the sky islands when moving around with that minecart thingy in the sky it would drop frames and resolution.
Just for context, mine isn't old it's the TOTK edition. The frame drops can be distracting and hardly what I'd expect from Nintendo's " biggest title so far ".
Have played for 7 hours so far and it's just more of what you had in BOTW. The puzzles feel more creative with the new abilities though.