One thing I've heard pretty strongly from the people that played Link's Awakening at E3 was that the game is incredibly beautiful BUT they haven't quite got the game performance to deliver and the game lags a bit during certain scenes. Grezzo is the company that is creating this new version and they've ported/created some of the best Zelda titles around including the Ocarina of Time 3D, Majora's Mask 3D and Luigi's Mansion on 3DS. Clearly they have the ability to make the game fluid, hopefully that comes together in time for launch on September 20th of this year.

"John takes a look at the E3 demo of Link's Awakening on Switch - it's looking really good with a remarkable level of fidelity to the original, but there is some room for improvement on this early build."