To narrow things down, LR takes 3-5 seconds moving from image to image in the Develop module. I am running Windows 10 64-bit, up to date and fully patched, 12GB of RAM, the latest version of LR Classic, updated yesterday, and I shoot in RAW. LR itself is on my system SSD, and the catalog and previews are on a separate SSD. LR has not always been this slow, but I can't pinpoint exactly when it slowed down. I initially thought it was slow moving from image to image while building previews, but even when the previews have been built it is still slow
... View more