I'm pretty upset about this. They should have been more up front with how the Switch version looked. They said that it would be 30 fps and lower res but didn't also say it would be missing so many more effects and have numerous glitches and crashes and hitches.
I was a backer and got my Switch code last night and played the game for a couple of hours. Characters glitching in and out during cutscenes, game crashed after first boss fight, frame rate chugging to sub 20 fps in places, sound glitches, no anti-aliasing, and missing effects from other versions. And yet I had a great time with the core game. Feels just like the Gameboy/DS Castlevania games. I only wish I could go back and change my pledge to PS4.