Why does it take so long to export a pdf from word?

If I have a dlcument in word or any other office application, I often want to export that to pdf and share it with someone. When I "export as pdf" the file, it works almost instantly, but it takes several minutes before the pdf becomes visible in ly filesystem. Why does it take so long for the pdf to show up, eventhougj it has been created sucvesfully.

The process of creating the pdf even ends with the pdf being opened in my pdfviewer.

I know microsoft sucks, but I'm bound to it for reasons. So I'd like to understand why it su ks this time.