File Updating (or Uploading)
Just switched from Dropbox. In Dropbox, when I make changes to a file, it updates (or uploads) very quickly as if it only syncs the changes made. In OneDrive, I notice (by the size of the file) the entire file is being updated (or uploaded AGAIN). It's time-consuming and data wasting. Hope this is dealt with in the next update to OneDrive.