Nintendo Switch - What data is stored in the Nintendo Account itself?

I've had a Nintendo Switch for over a year and there's now a permanent bug in their system. The mistake is that now almost all games jerk / have problems with the frame rate.

With a factory setting, I have tried to fix the error, but he is still there. In any case, before the factory setting, I disconnected my account from the console and after resetting the data, I reconnected the same account to the console. In my user profile on the console are still apparently the details of how long I have played certain games and maybe there are a few other data that are back, but of which I know nothing.

If I now buy a new Nintendo Switch, disconnect the account from the broken console again and connect it with the new console, then I have the fear that it could also be the problems with the jerking / the frame rate could be transferred. Can this really happen and then I have to create a completely new account for the new Nintendo Switch?

Look if your sd card has too much space

If you have a lot of money on your account then it would not be good to clear your account

Now she has a size of 128 GB.

The jerking does not transfer, that will be something at the console

Have you ever transferred the data from a Nintendo Switch?

Does it jerk in all games? Even in those where this was not the case before?

It does not hang together with the nintendo acc. To test this, you can disconnect the acc from the switch and start a game.

Yes, it jerks in all games where there had been no problems of this kind before.

There are now Cloud Saves with the online service? Only problem: Not all games support it (Splatoon 2 is a good example)

I almost never play online, so I did not buy a Nintendo subscription.

But you need that for Cloud Saves

But I have never used a cloud.