I had the same issue with 10-20 minute load times, several minutes just to switch between menu screens, severe block lag, and crashing. My save data was also around 2GB - However, my largest world is only 50mb. I would regularly make backups of my world by creating a copy, and delete older backups as I created new ones, only ever having about 10 total worlds max at a time. I also only had 2 texture packs and no behaviour packs / add-ons. My save data should not have been anywhere close to 2GB. It seems that while deleting worlds removed them from the list in game, it did not delete all of the save data from the system. This resulted in it eventually accumulating and bloating to 2GB and creating all of the above issues, even after I deleted all texture packs / additional content, cleared the cache, and deleted all but one world.
Prior to realizing it was a storage issue, I tried every troubleshooting step I could think of many, many times. Restarting the Switch, powering it off completely, deleting all extra worlds / packs, clearing cached data, using airplane mode, archiving the game, completely deleting and reinstalling the game, moving save data from the SD card to Switch's system memory and vice versa... The only thing that lowered my save data size and made the game playable again was to completely delete all save data (via the Switch system settings), delete the game, and reinstall it from scratch.
I did get a warning that the new save data mismatched what existed on my Switch's save cloud, so I wonder if the save cloud has anything to do with the save data bloat.
Unfortunately, experiencing this issue means your game becomes unplayable and the only fix involves losing all of your worlds - Unless of course you fork over extra $$ for a Realm just to be able to properly back them up, which is pretty reprehensible. This seems like a pretty serious bug that needs to be addressed.
Garbagealien
I had the same issue with 10-20 minute load times, several minutes just to switch between menu screens, severe block lag, and crashing. My save data was also around 2GB - However, my largest world is only 50mb. I would regularly make backups of my world by creating a copy, and delete older backups as I created new ones, only ever having about 10 total worlds max at a time. I also only had 2 texture packs and no behaviour packs / add-ons. My save data should not have been anywhere close to 2GB. It seems that while deleting worlds removed them from the list in game, it did not delete all of the save data from the system. This resulted in it eventually accumulating and bloating to 2GB and creating all of the above issues, even after I deleted all texture packs / additional content, cleared the cache, and deleted all but one world.
Prior to realizing it was a storage issue, I tried every troubleshooting step I could think of many, many times. Restarting the Switch, powering it off completely, deleting all extra worlds / packs, clearing cached data, using airplane mode, archiving the game, completely deleting and reinstalling the game, moving save data from the SD card to Switch's system memory and vice versa... The only thing that lowered my save data size and made the game playable again was to completely delete all save data (via the Switch system settings), delete the game, and reinstall it from scratch.
I did get a warning that the new save data mismatched what existed on my Switch's save cloud, so I wonder if the save cloud has anything to do with the save data bloat.
Unfortunately, experiencing this issue means your game becomes unplayable and the only fix involves losing all of your worlds - Unless of course you fork over extra $$ for a Realm just to be able to properly back them up, which is pretty reprehensible. This seems like a pretty serious bug that needs to be addressed.