To ensure the best performance of Lens Corrections you need to select the appropriate selections in the Develop Module under Lens Corrections tab. See the screen capture,.     ... View more

On my iMac 27" I do not have Preview size to auto see the screen capture. I find that adequate for general use if you need to compare in Library Module you can generate 1: previews. In develop Module the raw file will be used to render the image.        ... View more

You will have to find a way to clear disk space on your E: Disk. See if there is stuff in your trash bin, LrC Backup files and sundry image files an other document files.   ... View more

The drive that has your OS performance will be affected by the Applications you have installed and running including LrC. I guess you will also have Photoshop installed? ... View more

Where is the Lightroom sub-folder which has the LrC catalog file with support data and preview files located?   ... View more

@hyphos , You indicate in your post "1 TB SSD with over 100 GB free". This is what's responsible for the slow performance of your computer. It is recommended to maintain at least 20 to 25% of free disk space on your computer. You presently nearly 10% available, your Operating System requires that for file swapping and the like.   ... View more

@ulvogravn , your screen capture shows you have selected a folder called PHONE NARRATIVE and LrC does not recognize any image files in that folder to import. Try clicking on triangle to the left and see if there are any subfolders that may contain images. Inaddition in the right side of the import dialog you have selected "Do not import selected duplicate images". If you already imported the images that will create problems trying to reimport from a different location. Provide additional information.       ... View more

@Per Berntsen , thanks for the link to the updated info for using the AI enhance features in LrC 14.4. Very helpful info. ... View more

Edited by poster. When I read this thread all I can say is "wow". ... View more

@johnrellis. Thanks for the informative post, it has been helpful for me.   ... View more

@KJvO ,  There was an earlier post by @JohanElzenga  regarding the "Update AI Settings' Icon. I believe that is the issue you should see. E.g if you use the Denoise AI on an image and then use another AI function like Generative Remove you should get a warning to Update the AI Settings,. That is the expected behavior.   ... View more

I did a further test with Denoise a batch of nine raw images using Auto sync and the approximate time per file was 53.3 seconds. So it's definitely not as much as 2 min.   ... View more

@mclynn , how are you making the comparison, memory recall of what you see on your camera to what you see on your Computer Monitor? Or are you using the raw conversion software provided by your Camera manufacturer? I your Computer monitor profiled with physical profiler? ... View more

I have followed this thread with interest and have done some individual tests using the Auto Sync on while applying to a batch of images. What I observe is the AI Denoise process is that the Denoise is done to each image individually and it is not just applying the same edits as done to the first image. The individual data is stored in the support data file alongside the Catalog file. I do not use the option to Automatically write Metadata to XMP, as this will slow the process and utilize additional storage. This process is obviously a complicated process and takes some time to complete. My experience is it takes approximately 2 min for each raw on my Windows computer to complete the process. One positive thing is the edits are stored in the data files and Catalog and I can delete the earlier Denoise DNG and Tiff files generated in earlier versions. I am looking forward for improvements going forward. Just my 2 cents. The other option to check is to use Adobe Camera Raw to do the Denoise and import the file created to LrC. I am using LrC 14.4.   ... View more

@Ortwin284191255cpu , please indicate the version of LrC you are using. ... View more

@lampsony , The latest update is now LrC 14.4, have you updated to this version? ... View more

@ouiouiphoto , when you are using LrC the application is reading and writing to the Catalog file an other data files that reside in the same folder as the Catalog. So it's possible to use all the functions of LrC without the XMP sidecar files. There is an option to automatically write XMP or you can do so manually, the XMPs are utilized by Adobe Camera Raw application or other third party applications. Writing to XMP will slow the performance of LrC and utilize disk space to store data, ... View more

@arniebook , the answer to the issue in this thread was posted on Dec 10 2023 by @Jim Wilde. Nothing has changed since that time. ... View more

@robert36972564 , I work with LrC as an alternative to Bridge / ACR /PS and do not depend on XMP sidecar files. My work done in LrC is stored in the Catalog and other data files that reside alongside the Catalog. If there is a need to do additional work in Photoshop I use the edit in function to send a tiff to PS.. I am away from my computer this week and will see how I make out on my Win laptop  with LrC 14.4 next week. Lots of changes here to get familiar with. ... View more

@duag , Have you updated to the latest version of LrC 14.3.1 , released May 8 2025. ... View more

@jiml61820847 , there was a recent update to LrC version 14.3.1 a couple days ago. Please confirm if you are using this update? ... View more

@Flor1n ,  Lightroom Classic was updated a couple days ago to LrC 14.3.1 are you using this latest version update?   ... View more

@Julius90 , there is an update available today with some bug fixes. Lightroom Classic v 14.3.1 .   ... View more

LrC 14.3, is now available.   ... View more

@user3756666 , any specific reason you have not upgraded to the latest version of LrC 14.2 ?   ... View more

I have no problems with PS 26.5 on my Window's system, however I have no access to PS 26,6 (beta) so I am not able to comment. ... View more

@hayphotoman , did you by chance use the "save as " option.   ... View more

@hayphotoman , Please provide info on what changes you did in PS prior to saving.   ... View more