when using a brush in a mask is causing LR to slow down

Forum|Forum|3 years ago
July 9, 2022
3 replies
1712 views

Just noticed LR running very slow when I use a brush in a mask, the little swirling circle in the bottom right corner of the screen, I think this is the CPU rendering, will keep swirling and not seam to make the adjustment. All other tools work fine, radial and linear gradients, add and subract are all operating fine, only when I use the brush.

Windows

RAW Photography66Author

Known Participant

Hi all, I had Adobe take a look at the issue as it was bugging me, I tried the test recommended in the group and it did lead me to believe it was my graphics card which the Adobe support did confirm it was the issue. I now know what I need to do, this will be upgrade 3 to my computer in the last 2 months, I don't think there will be anything left in it that was an original part after I change this. Thank you all for your answers.

dj_paige

Legend

You didn't answer any of our questions.

RAW Photography66Author

Known Participant

So its no surprise that trying to do a lot of brushing on a 45MP image will slow down. Have you tried turning OFF the graphics acceleration in LrC (Preferences->Performance->Use graphics processor)? Your monitor is not 4K, so having the graphics acceleration on might actually be the culprint.

Actually, when we turned it off yesterday it worked far better, no lagging at all, would this be the best way to work? I assume its not a necessity to have it on?

dj_paige

Legend

Are you talking about Lightroom (Lr icon) or Lightroom Classic (LrC icon)?

I think we would also need to know the size of your original images in pixels or megapixels (not megabytes), and the size of your monitor in pixels (width x height, not inches).