Lightroom 6.7: Import my photos takes up to 14 hours (macOS 10.12)

I have seen this before and it seems to come and go with versions of the operating system and Lightroom. It appears to me to be a problem with the interface between Lightroom and the operating system. When I encounter this, I manually copy the image files from the memory card to the hard drive and then import the images into Lightroom using "Add." Works fast this way.

Are you importing from a camera? A card reader? From your hard drive?

I use a card reader and simply select all the images and copy them to the desired folder on the hard drive.