[Zubersoft]

What options do you currently have selected for the sync? If you use a direct sync between the two devices with the sync type set to "Update Client", for example, this should run fairly quickly. MobileSheets shouldn't have to calculate any file hashes with the latest updates (so make sure you are updated to version 3.8.17 if you are not currently), so it should just be some quick number comparisons and comparisons of all the metadata. If you are only wanting to sync new songs, you could change the merge behavior to "Only merge new songs and groups" which would speed it up considerably. If you don't need metadata, you could uncheck various options which would also speed it up a bit.

Mike