So, if you’re playing undocked (either because you have a switch lite or because you have nowhere to set up a dock) my advice won’t help. But if you connect the switch dock directly to your modem via Ethernet cable (if this is possible for you) using a USB A to Ethernet dongle, you’ll at least have a more stable connection than connecting via wifi. We don’t know the age of your wifi router or anything else about your setup though, so it may be any one of those factors as well.
Wish they’d add the new games to the website so I could wishlist them. I’m looking forward to this.