Konami just announced that an update for Super Bomberman R will be coming very soon. It will include performance updates and online improvements, this is what they had to say:
Dear Bomberman Fans,
We are happy to announce a significant upgrade for Super Bomberman R available on Nintendo Switch.
These improvements should greatly refine the game-play, control input and character controls, for both online and offline play.
This is the first of many upcoming updates that will focus on improving the Super Bomberman R play experience.
We appreciate your patience and your continued support..
Stay tuned for more information!
The Super Bomberman R team.