3 Messages


86 Points

Thu, Oct 22, 2020 11:11 PM


Lightroom Classic v10 UI performance degradation on Mac

Upon upgrading from v9.4 to v10, certain UI actions in Lightroom have become incredibly slow.  The most noticeable is scrolling in Library Grid view.  I experienced no lag/hesitation in any of the 9.x versions, but in version 10, scrolling in Library Grid view is almost unusable (several seconds to scroll a couple of rows).  I downgraded back to v9.4 and all lag went away.  I'm running a 2016 Macbook Pro 16GB RAM with Radeon Pro 455 2GB VRAM. MacOS Catalina 10.15.7.

This conversation has been merged. Please refer the main conversation:

Lightroom Classic 10: User Interface VERY slow after upgrading

137 Messages


2.1K Points

1 y ago

Glad to read this as I noticed this slowdown on my iMac too. (I reverted to 9.2.1 though, due to the clone/heal bugs when used at the frame edges, which were introduced in 9.3).


47 Messages


846 Points

1 y ago

Same Here...

MAJOR slow down in virtually every way.