Adding Exported Photos to Catalog is Extremely Slow

Question

I exported 479 photos to a folder with “Add to This Catalog” selected. The export proceeded as expected but the operation to add the photos to the catalog was painfully slow. It was taking 4-10 seconds for each image. During the time to add the photos to the catalog all other importing operations are frozen. During the extended add photos operation LrC is consuming about 7-10% of CPU. The rate at which photos were added to the catalog is much slower than other operations that add photos to the catalog.

LrC 15.3

Win11

Bob Somrak · Answer

The post was moved from Bugs to Questions because of the forum rules as this issue is not considered a bug YET although it appears to be a bad design. That's the rules, like it or not.

As far as the slow “add to catalog” issue, this has been the situation for a long time. I just tested this on 240 photos and the import was about 1 second per photo after the export completed. If I simply import using the “copy” option the same import of the 240 photos completes in just a few seconds. I have no idea if the “add to catalog” creates 1:1 previews etc. I never export/add except for rare occasions and then it's only one or a few photos.

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