Correct me if I’m wrong, but when you hit Export as HTML5 to Dropbox, it seems the whole content is being fully re-uploaded directly to Dropbox, which might take ages?
If I rather choose to export to folder and select the folder created in previous export, it seems to be much faster - generally Dropbox is pretty good at recognizing file diffs and uploading only the diff data. I.e. especially the big assets are not being re-uploaded.
Is my understanding correct? Thanks