Problems with attachments in Mac Mail

Hello everyone,

It's been months since I'm having issues with attachments in my emails. No matter if it's a JPG or a PDF, there seems to be a big delay to how my Macbook Pro behaves (2019 16" i7 on fully updated Monterey), when I'm trying to drag the file on my desktop.

First, it takes a few drags to make the file movable and after that, it almost always drags out an unrecognizable file with an "@" icon on it. The only way to solve this, is to right click, view the file as icon and then drag it.

I get the feeling that these problems started when Mail begun recognizing the text on the attached images and pdf's. So I'm wondering if there's a way to disable the feature (which I don't need anyway) and see if things get back to normal. Any other suggestions is most definitely welcome as well!

Many thanks,

Petaine