Lightroom Classic import is slow on Windows 10 (and a possible reason)

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  • Updated 3 weeks ago
Since upgrading to Windows 10, import has been painfully slow.  When I click Import, there can be a delay of up to 2 minutes.  FYI I do not have Lightroom configured to run import when I insert an SD card, so the import window comes up empty, except for the left and right panels.

To populate the left panel, Lightroom must ask Windows for information about devices and files, including shared folders on network devices.  I suspect this is where the delay occurs.  I suspect this because when I open File Explorer and select "This PC" there is also a long delay.  I think Lightroom is doing something equivalent.

I looked for ways to speed up File Explorer.  One suggestion was to disable Cortana.  After disabling Cortana, my imports were still slow, but definitely faster than before.  At least I never got a "not responding" message in the title bar.  Oddly enough, successive imports alternate between being fast and being slow: Slow, Fast, Slow, Fast, etc.

Notice that I have a shared folder "Backups" that Lightroom must discover.  Could this be the problem?

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John Isner

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Posted 3 weeks ago

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Philippe Coudé du Foresto

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Yes, having a network drive in the list might cause a delay since the file explorer has to check every drive. Accessing a network drive is longer than accessing a local drive. If the network drive isn't connected, it's worst since you have to wait for the timeout...
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John Isner

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It would be useful for Catalog preferences to allow the user to specify a list of excluded drives that Lightroom should not check.  The drive letters would be shown in the left import panel marked "excluded."  If you wanted to include them during a particular import, you could override the exclusion by clicking on the drive and then pay the price of waiting.  Or maybe all drives should be treated as excluded by default.