Lightroom Classic CC: Uses ~90% CPU during export

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  • Problem
  • Updated 1 year ago
  • (Edited)
After latest Lightroom Classic CC I almost can't work in Lightroom during export as it's using around 90% off mu CPU. Maybe exporting itself is a bit faster but when exporting 2000 pics I'm unable to work for about half an hour as there are huge lags. In the end I would rather prefer slower export working in a background and still have ability to work with pics without such noticable slow down. It was much better balanced before updating to Classic CC.
My CPU: Intel Core i7-6700K (4 cores, od 4.00 GHz do 4.20 GHz, 8 MB cache)
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Adam Janoszek

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  • frustrated

Posted 1 year ago

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Assaf Frank

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I would rather Lightroom will use 100 percent all the time. At the moment it is using most of the time between 10 to 30 percent. And the most frustrating thing is the performance degradation over time. After restart lightroom will reach 90 percent but after 10 minutes of working it goes down to 10 to 30 percent. This is more noticeable the more cores you have. The best way to replicate it is export 100 images after restart. Time it and look at the cup graph. Then do it again immediately after you will see it takes much longer and the cpu will not reach 90% any more... W10 i7 5960X 8 cores