Lightroom CC: File handling much slower

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  • Problem
  • Updated 3 years ago
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  • (Edited)
I'm having an issue with Lightroom CC being very slow at file handling. In Lightroom 5 I could move files from one folder to another on the same drive very quickly (almost instantly, never more than a few seconds), but in Lightroom CC I'm currently moving 400 CR2 files to a different folder and it's taken 10 minutes. This is on a Retina MacBook Pro with an SSD.

Also, the way Lightroom CC converts to DNG seems to be different. Normally when I import files I choose to convert to DNG in the Import dialogue. Normally in Lightroom 5 I ended up with a folder full of DNG files. However, in Lightroom CC I seem to get a folder of CR2 files which are then converted to DNG. I tried moving these files (from within Lightroom) while this process was going on and Lightroom got very confused and around 25% of my files could no longer be found by Lightroom (they were still on the disk, but with "DNG" extensions as opposed to the "CR2" which Lightroom seemed to be expecting, even though it had just converted them!).

Overall, this has slowed my import workflow down hugely. I used to Import as DNG, move my files around and boom, done. Now I need to import as CR2, then move the files into the right folder (which takes at least 100x longer now), and then convert to DNG. Not good!
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Jack Donaghy

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  • sad

Posted 5 years ago

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Bob Askey

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Well, they really broke it this time. I dread processing my photos now. It helps to use the Adobe Raw to DNG converter as it is much faster, but it is one more step.

I never had corrupt files before, nor files that failed to export. Now, I do have files that failed to export. I used to run three exports at one time, just start them and go do something else while I waited. Now I need to run each separately so that I can redo the ones that failed to export. It is other wise too difficult to determine which file in which export job failed.

I keep hoping for a new patch every time I open LR, but it is not happening.
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Michael Delman

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Adding another voice to the conversation. Import was always slow at times for reasons I was never able to diagnose, but this is ridiculous. I'm waiting one minute or more for *each file* to load, before the conversion to DNG and preview building even begins. It's unfathomably, intolerably slow. (Back in LR 4, a 16GB card with hundreds of images would import in a couple of minutes.)

Does Adobe have anything to say about this? They really should be embarrassed by this level of mis-performance.
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Jason Crowder

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I was really hoping that Adobe would address these concerns with the latest Lightroom update, but they didn't. Their claim for changing the way "Copy as DNG" works is that in some circumstances, the files were getting corrupt. I've imported and converted thousands of .CR2 files to .DNG and have NEVER had a corrupted file in previous versions of Lightroom.

It wouldn't be too difficult for them to create an option in the Preferences dialog in the "Import Options" section to "Copy as DNG without Intermediary File" or something like that. That way the people who were having trouble with corrupted files could keep the current/slow import functionality and the rest of us could switch back the old/faster way.
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Bob Askey

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Last night when I fired up LR I got the opportunity to fill out a short survey, which I was excited to do. I said that there was no chance that I could recommend LR to a friend and then listed in the comments all of my complaints.

I also requested the option to install only the modules that I need (dream on, but sometimes dreams come true).

I am using Adobe Raw Converter to save time on the import, however building 1:1 previews still takes a really, really long time. At least I can go ahead and start working.
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Bob Askey

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I got some improvement when I uninstalled my old DataColor Spyder product. Installing the newest version did not make it bad again. This improved the transition time between images in both develop and library.

I wish the cache was bigger, ie I can now rock back and forth between two images without delay, once both are loaded. However, if I view a third one of the others drops out. I have set my cache size to crazy figures without fixing this issues. Perhaps this data is cached somewhere else? Perhaps main memory? I have 16gig of ram...
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Mike Miller

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Adobe...please fix this. It is killing my efficiency.
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Steve Wilhelm

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This behavior has almost made Lightroom CC 1015 unusable on my iMac.

The previous version of LR did not have this problem.

My workflow has almost ground to a halt.
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Tyron Scholem

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I had a problem with moving files within Lightroom CC very slow. Thanks to Denni's post on this thread, I got an idea to disable Face detection. Boom! 600 files moved on the same time it had moved 20 before.
So there is something really wrong going on with face recognition while moving, but this is my workaround. Disable, move, re-enable it.
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Venkatesh Penjuri, Official Rep

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Official Response
Hi Tyron,

Thank you for reporting. We will look into this. 

- Venkatesh
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Todd Thoenen

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I just started experiencing this yesterday after updating to 2015.6. I'm moving old files within LR and it is taking way too long. I went to bed last night and it took all night to move 250 photos from my main drive to an USB 3.0 ext. And it has taken over 3 hours to move 113 files from the main to an internal drive. Why.