I've seen many people trying to report this as a problem.
I am making it a suggestion.
I do not use Mobile or Cloud options. I have no need to sync on multiple machines.
But for many of my accounts, I believe those using EWC and EWC+. every time I attach a PDF or image to a transaction it is also uploaded to the cloud. I then have to Delete it using the option "delete from cloud only". This upload also makes the attachment process slower.
I am using windows but assume this is probably true on MAC also.