[mbirth]

When handling large PDFs, I've noticed that, when changing e.g. author or book name, instead of simply renaming the files/folder or moving the book folder to the new author's folder, Calibre seems to copy everything and then delete the files/folder from the previous location.

So what should take a fraction of a second (rename/move) suddenly takes several seconds per book - because everything is duplicated and then the old versions deleted.

I didn't find any option in the Preferences to change this behaviour. Did I miss it? Or is there another way to change this?