When launching Minecraft on the Nintendo Switch I experience long loading times lasting from about 2 to 3 minutes in total before I reach the main screen.  After clicking launch I will see a black screen which lasts for the majority of the loading time, which then transitions to the normal Mojang loading screen.  This can be seen in the below attachment (attachment is cut down to 30 seconds to show the problem, but lasts the above mentioned 2-3 minutes).  This long loading time is the result of my save data as when I delete it I get normal loading times (no black screen).  However, I redownloaded my save data from the cloud as I have Worlds which I don't want to lose.