Brush extremely slow after installation

[vw5254]

Hi all,

I installed 11.5 two days ago.  My system is Windows 11 running on a Surface Book 2with 16 Gig of RAM.  Prior to the updatewhile the actions below were not extrememly quick, now it is almost impossible to work with.  All the tone and geometry controls work fine.  The masking detectors/selectors work fine.  When I try to modify a mask with a brush or use the brush for normal editing it updates extremely slowly and incompletely and is so troublesome it is almost unusable.  

Is anyone else finding this or has anyone else solved the issue?

I have cleared the caches and tried both preview methods and limited the vidceo cache to 3 Gig.

[dj_paige]

Sometimes (I'm guessing) the GPU acceleration option gets changed when new installations happen. Please check the setting at Preferences->Performance->Use Graphcis processor, and if it is off, turn it on. If it is on, turn it off. See if anything improves.

[vw5254]

Thanks for the idea. My setting is auto and it has been since the first installation. Yesterday morning (update was Wednesday) when I used the brush on its own or to modify an automatic matte, pain timing is slow, incomplete and it would generate strokes well outside my input. I tried custom and, in both modes that include gourmet acceleration, it failed in the same manner. When I turned it off, the “painting” became correct but much slower than I was used to. Something failed with the last update. I have cleared the cache after each image bit no help. 

Verne

Sent from my iPhone

On Aug 19, 2022, at 10:54 AM, Adobe Support Community Mailer <noreply@mail.community.adobe.com> wrote:

Adobe Support Community

Hi vw5254,

dj_paige just posted in a community you follow.

Aug 19, 2022 06:54 AM in Lightroom Classic Discussions

Re: Brush extremely slow after installation

Sometimes (I'm guessing) the GPU acceleration option gets changed when new installations happen. Please check the setting at Preferences->Performance->Use Graphcis processor, and if it is off, turn it on. If it is on, turn it off. See if anything improves.

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[dj_paige]

This is new information

when I used the brush on its own or to modify an automatic matte, pain timing is slow, incomplete and it would generate strokes well outside my input.

Make sure "Auto Mask" in the Brush tool is not checked.

[vw5254]

I will try that but I would not think that is the issue. I have normally used it in the past and there seems to be no issue when I turn off graphic acceleration. 
thanks