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Have you tried disabling GPU acceleration? (Preferences > Performance)
Also, I noticed LR was really bogged down doing facial recognition until it churned through my entire catalog. I've since turned that off, as it wasn't any use to me.
Another thing, some users have reported a performance improvement by increasing the Camera Raw cache to 20Gb or more.
See this link for a list of potential ideas for speeding up Lightroom:
Thanks. I did the increased raw cache, but maybe I missed the GPU acceleration and that's what's bogging me down. I just clicked on it, so hopefully that will help. I looked for anything in Preferences regarding facial recognition, and I don't see anything. I don't need that. Where do you turn that off (in case it's on)?
Face detection is paused by clicking on the identity plate and then clicking the right option.
Face Detection was off. Added the GPU acceleration. Still not nearly as fast as I'd like.
Were you able to determine any difference in performance with GPU on or off?
A little, but not much.