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JBedfordPhoto
JBedfordPhoto
Inspiring
October 30, 2025
Answered

LRC 15 Slow?

  • October 30, 2025
  • 6 replies
  • 1916 views

Since updating to LrCC 15 yesterday (Windows 11), I find my workflow much slower. Both the library and develop modules are slower, photos taking a long time (a couple of seconds) to paste settings in the develop module (despite LRCC receiving the input to paste immediately, the effects take a few seconds to apply to the image - this is true across both my Phase One tiff/raw files and my Fujifilm X series raw files).

 

Anybody else experiencing some slowdowns (as usual with a new LRCC release, unfortunately). 

    Correct answer AxelMatt

    I've seen the same behavior on my side in the past. In the Taskmanager the CPU is permanently on 95-100% and LrC reacts in the Library module extremly slow. I notices also that the LR-Katalog.lrcat-wal file is constantly growing and growing. 

    After I restore the catalog from my recent backup all worked fine again. 

    I don't know why this happens. I haven't done anything that would have resulted in major updates to the catalog.

     

    Try to create a new catalog with several pictures and check or restore your recent backup.

     

     

    6 replies

    C
    carlcoreyphotographer
    Participant
    November 20, 2025

    I have the same issue. LRC 15 and up is so slow I reverted to 14.5 and all is as it should be. smooth fast and reliable. It appears LRC 15 is  causing my entire system to slow and quite frrabnkly using 15 plus is so choppy, slow, and freezing as to be useless.

      C
      carlcoreyphotographer
      Participant
      November 20, 2025

      Additionally: I am on a Mac M1 Max Studio 32gb ram. LRC 14.5 and current version photoshop runbveautifully usingbthe same size catalogue of 17000 picture archive.. 

      J
      James278055166zdm
      Participant
      November 13, 2025

      The update to Lightroom 15 was released too soon.  When I installed it the first time it caused nothing but headaches.  Reinstallation of the software and creation of a new catalog finally brought me online; however,  v. 15 is exceedingly slow.  Opening the program can take up to 60-70 seconds...and, the development mode can take 13 sec to open an image.  None of these problems existed with v.14.5  I use Windows 11 Pro, i7 processor, 32 GB installed memory etc.  I have tried numerous suggestions and non of them have helped.  

      johnrellis
      johnrellis
      Legend
      November 13, 2025

      @James278055166zdm, please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

      sandroriz
      sandroriz
      Inspiring
      November 7, 2025

      The short answer to the subject is no... it is not slow, it is UNUSABLE!!!

      I forgot the auto-update feature on in Creative Cloud and now I got an update that makes the software so laggy and slow that I can't edit 10 jpg of smartphone (imagine hundreds of RAW of mirrorless)


      1) tried with several catalogs (twice optimized) and also with a fresh new importing only a dozens of photo... same story
      2) all my catalogs are on D:, that is a fast local SSD NVME
      3) disabled ALL the plugin-ins
      4) paused culling, address, face detection
      5) GPU enabled
      6) cache 10gb

      The slowness is everywhere... changing from Library to Develop (D/G) 3 or 4 seconds, changing photo in develop mode 2 sec., the UI is redrawing in slowmo: the development panels of the right come out like in a Intel 386 of 80s',  the preferences dialog (Ctrl+,) took 3 seconds, etc...

      Attached my sysinfo and here the diagnostic dump...  Win11, i7, 64ram, RTX3070

       

      if it helps I could take a video/shotscreen


      It would be very painful, uninstall, reinstall 14.x and then re-set all the stuff

      NEVERMORE auto-update before reading the forums 😞

      AxelMatt
      Community Expert
      AxelMattCommunity Expert
      Community Expert
      November 8, 2025

      @sandroriz 

       

      I see two points in the system information that require attention.

       

      Graphics Processor Info: 
DirectX: NVIDIA GeForce RTX 3050 Ti Laptop GPU (32.0.15.7683)
Init State: GPU for Image Processing supported by default
User Preference: GPU for Export enabled
Enable HDR in Library: ON
GPU for Preview Generation: Auto (S3_3)

       

      The device driver for your graphic card is outdated. Goto NVidia's website and download the recent Studio version of the device driver:  NVIDIA Studio Driver 581.57 | Windows 11

      Install it and check.

       

      The second point is that you've buildin  CPU with a internal GPU. 

      Adapter #2: Vendor : 8086
	Device : 46a6
	Subsystem : b191028
	Revision : c
	Video Memory : 80

       

      This internal GPU can sometimes caused several issues.

      Open the Windows Device Manager, right-click the card's name and choose Disable.  Restart the computer and check again.

       

       

       

      My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 5 - Topaz Photo
      sandroriz
      sandroriz
      Inspiring
      November 8, 2025

      In the past I had problems installing nvidia drivers NOT offered by Dell Command Update

       

      Even Nvidia warns about this...   But I will give a chance...

       

       

      Disabling Intel GPU is not an option... why should I run Windows explorer or other "simple" programs with RTX consuming useless power, battery, etc?
      I tried only for curiosity and I immediately lost the multi-screen option

      Anyway, thanks a lot for your suggestion...

      Rikk Flohr_Photography
      Community Manager
      Rikk Flohr_PhotographyCommunity Manager
      Community Manager
      November 6, 2025

      The Lightroom Classic Engineering team would like to collect logs from anyone afflicted with the description in the Original Post. 

       

      1.  Restart Lightroom Classic
      2.  Allow 5 minutes of no operation
      3.  Begin using Lightroom
      4.  Once you observe the same slowness described in the original post Create a Diagnostic Log
      5. For LrClassic
      6. Go to Preferences
      7. General Account Section
      8. Hold down the [Opt/Alt] key to make [Diagnostic Log] button appear.
      9. Once you have a diagnostic log, post it to a sharing service (Dropbox or similar) and post a link for us to retrieve the file.

      Thanks!

      Rikk Flohr: Adobe Photography Org
      R
      Rlrood
      Known Participant
      November 7, 2025

      Can not find the Account section in Preferences?

      Rikk Flohr_Photography
      Community Manager
      Rikk Flohr_PhotographyCommunity Manager
      Community Manager
      November 7, 2025

      The instructions have been updated (Account occurs in Lightroom Desktop - It is General in Lightroom Classic)

      Rikk Flohr: Adobe Photography Org
      D
      David30691462fbh7
      Participant
      October 31, 2025

      I'm also have issues.  MY CPU is constanlty at 70% with LR open and NOT doing anything.  Very unusuable.  (7900X, latest drivers and updates installed) 

      johnrellis
      johnrellis
      Legend
      October 31, 2025

      [This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

       

      @David30691462fbh7,

       

      1. Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running and important LR options that are set.

       

      2. Look in the upper-left corner. Are XMP sidecars being saved? 

       

      3. Click on the identity plate: 

       

      Is Assisted Culling or Face Detection enabled?

      Srishti Bali
      Community Manager
      Srishti BaliCommunity Manager
      Community Manager
      October 30, 2025

      Hi @JBedfordPhoto,

       

      Thanks for reporting this! Could you please share a few more details so we can better understand what’s happening?

      • Your system info (from Help > System Info in Lightroom Classic).

      • Does the slowdown occur with specific file types or all files?

      • Does turning off GPU performance improve the responsiveness? (Preferences > Performance > Use Graphics Processor)

       

      You can also try resetting preferences to see if that helps. Don’t forget to create a backup of the preferences folder before doing so. The steps are shared here: How to reset Lightroom Classic preferences

       

      Regards,

      Srishti

      W
      wysiwygot
      Inspiring
      November 1, 2025

      Since upgrading to version 15 LrC has become extremely slow.
      In the development module, the sliders react with a significant delay. Switching from one image to another sometimes takes more than 7 seconds.

      What have I done?
      1- Deleted preferences - Without success

      2- Uninstalled and reinstalled LrC, created a new catalog and imported the catalog from the last backup - Without success
      3- Disabled GPU - Without success

      As soon as I perform any action in LrC, the CPU usage jumps to over 40%.
      Meaningful work is impossible. Sometimes it takes 15 to 20 seconds before any response occurs.

      All the tips suggested here so far have been unsuccessful.


      System info attached.

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