r/Lightroom • u/actuallyaladdin • 2d ago

Discussion Synced Lightroom Classic Catalog significantly slower than Non-Synced

EDIT: Synced to lightroom cloud, allowing access to full raws on other devices.

Just wondering if anyone else has experienced this.

I have 1 Master Catalog that is [mostly] synced with the cloud.

Half the photos (all of which have the originals synced to the cloud) are my personal/travel photos while the other half (none are synced) are from weddings and events I do on the side.

I exported all of my professional work to another catalog, and now that catalog is blazing fast. For example, I wanted to make sure standard previews were built for all of those photos. In the new catalog, it was quick to start and detect that they were all already built. On my synced catalog, it takes a few moments to even begin and halts/slows down at some point, even when syncing is paused.

Currently have it set up to use my home Windows PC as a homebase and use my Macbook/iPad on the go. With the master catalog running much slower, feels like a waste of time.

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u/aks-2 1d ago

I have observed a slight slowdown when LrC first starts and checks sync status, or indeed has to sync files.

Are you comparing like-for-like, especially with storage location of your local photo files - this can make a huge difference to building previews?

Alternatively, try disabling sync temporarily and confirm your findings.

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u/HeydonOnTrusts 2d ago

Yep.

I made the mistake at one point of having my library and catalogue in a location synced to One Drive. It was unusable.

I ended up switching to Backblaze and now have zero issues. It’s seamless and doesn’t seem to affect performance at all.

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u/actuallyaladdin 2d ago

My mistake; I have it synced to lightroom cloud, meaning I have access to the full raws on my other devices.

I did also have it synced to onedrive at one point. It would work but had way too many hiccups to be worthwhile.