User experienced that a minor change to a placed module in a file caused huge file increase after saving the file. User also noticed that every save action will cause further file size growth.
When you place a Hotlink into the file, it is only stored once and is multiplied in the actual memory. However, it is not possible for drawings, they are multiplied in the files as many times as they appear on any of the Drawings.
It is suggested to open the Drawing Settings and untick ‘Store Drawings in Project file’.
This way, the file size has dropped to the original size. However, when you open a Layout for the first time, it has to be loaded, so it will be slower.