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Jyrki0D44
Participant
May 21, 2026
Question

LrC very slow Denoise AI

  • May 21, 2026
  • 2 replies
  • 38 views

LrC very slow Denoise AI. Laptop AMD Ryzen 7 and Radeon 7600m. Latest Radeon drivers. I also tried switching to older drivers but it didn’t help with those either. The computer used to perform this Denoise AI process very quickly (about 15 seconds). Less than a month ago apparently some update caused it so that now the same task takes about 15 minutes.

When I go to LrC - preferences - performance Camera Raw. In the settings it is no longer possible to change the <Use Graphics Processor> and <Use GPU for Preview Generation> values. Both values are gray and set to OFF. Earlier, both values could be changed and were, if I remember correctly, set to AUTO.  
Below this it says that  
Graphics processor acceleration is not supported by your system.

What could possibly have caused this (some update?) and what could be a solution to the problem?

    2 replies

    Lelion86
    Lelion86
    Participant
    June 12, 2026

    I’m having a very similar issue. I have a Ryzen 7 7700X.

    If I enable the graphics processor in Lightroom, working with photos becomes very slow and choppy. If I disable it, Lightroom becomes smooth again. However, the Denoise processing time is still extremely long. It used to take less than a minute per photo, but now it takes around 5–10 minutes.

    Have you found any solution or workaround in the meantime?

    dj_paige
    dj_paige
    Legend
    May 21, 2026

    Regarding the error “Graphics processor acceleration is not supported by your system”, please read

     

    https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

    J
    Jyrki0D44Author
    Participant
    May 24, 2026

    These solutions didn't help.  
    I am quite sure that the LrC update is causing the problem, or perhaps this RX 7600S processor is no longer supported in Lightroom for some reason.  
    It's strange because it has worked very well all the time for about two years that I have owned this computer.  
    Is LrC able to update backwards? Otherwise, this LrC is completely useless to me, and I will have to look for some other program to replace it.

    dj_paige
    dj_paige
    Legend
    May 24, 2026

    You can downgrade to earlier versions of LrC. 

    https://helpx.adobe.com/download-install/apps/download-install-apps/creative-cloud-apps/install-previous-versions-creative-cloud-apps.html

     

    I don’t know if the upgrade is the problem or not, but most people are not having these problems after the upgrade.

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