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Lightroom Classic Slow

Explorer ,
Mar 20, 2021 Mar 20, 2021

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I beleive my Lightroomn classic is not using the graphics acceleration. It lists my garphics card and is set to automatic in performance but it is much slower than Bridge. I converted 39 .nef photos to .dng. In Bridge, it took 7.5 seconds and in Lightroom, it took 35.2 seconds. Same photos using same conversion settings. Also, I heard the fans on my graphics card kick in when using Bridge but not when using Lighroom.

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Performance, Problem or error, Windows

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LEGEND ,
Mar 20, 2021 Mar 20, 2021

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I don't think converting to DNG is supposed to use the graphics acceleration in Lightroom Classic.

 

Exactly what steps are you using to convert to DNG in Lightroom Classic?

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Explorer ,
Mar 20, 2021 Mar 20, 2021

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I use "Convert Photo to DNG" in the "Library" menu.

If it isn't the Graphics board, then it is my processor kicking in. I am using a 16 core AMD 5950 processor.

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LEGEND ,
Mar 20, 2021 Mar 20, 2021

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Yes, the CPU does the conversion to DNG.

 

I don't know why there is a difference in time between Bridge and Lightroom Classic.

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Adobe Community Professional ,
Mar 21, 2021 Mar 21, 2021

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Perhaps you'll find the information via this link useful.

https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html

 

warmly/j

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Explorer ,
Mar 21, 2021 Mar 21, 2021

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All is more than good on the system performance standpoint. Running AMD 5950x, RTX 3070 graphics, 6TB of NVMe 4.0 SSD, 64 GB memory. Since the performance difference was on the same machine with the latest versions of Bridge and Lightroom, it would seem the issue is with the software.

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