Edit changes are slow to appear

[Christophe5DE8]

Good evening,

After having tried pretty much everything I could find or think of, I'm calling for help from the community, out of despair 

Since LR 14.4, I barely can develop my pictures anymore:

• The Develop interface is very slow / lagging,
• The changes I try to apply seem to be queued, and executed with a massive lag,
• However, the changes I apply are applied instantaneously in the Navigation preview,
  Sometimes I *can* work at normal speed, does not last,
• Cropping tool will make the photo disappear from the Develop windows, until I switch pic, or tool, and then i will sometimes
• Switching pictures will make the processing lagging immediately,
• Switching pictures may display the new photos totally mis formed for few seconds
• All this symptoms come and go, I could not find a pattern (Not helping to troubleshooting)

The dev tools are lagging too:

1. If I switch from Color to B&W: I keep seeing the Color Mixer
2. If I switch back to Color, I keep seeing the B&W tools
3. The folded in Histo will fold out second after I asked for it
4. The tools display does not refresh properly

• Library operation seem to lag less, but the Navigator will lag to open if it's closed

My rig:

• AMD Ryzen 7 3700X 8-Core, 3600 Mhz
• NVidia RTX 2060 6G 0 latest Studio Drivers
• 32GB of RAM
• OS & LR catalog of 2 different SSD
• Catalog is about 2.5GB
• Windows 11 up-to-date
• Wired LAN
• RAW on a Synology NAS since 2024

I tried, without success so far the following:

• re-Install the latest Nvidia Studio drivers "fresh"
• Enable/disable the GPU,
• Clear the caches,
• Reset preferences,
• Check the catalog integrity,
• Export a subset of the photos to a new catalog,
• Restore a catalog from before 14.4,
• Create an empty catalog,
• Reboot of course more that I can write

The symptoms could point out to GPU drivers, but disabling the GPU makes no difference.

Any pointers will help...

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

[Christophe5DE8]

Guess what... not fixed.

It's been fine for few days.

And it's morning problems are back again.

So frustrating....

[avalent]

They broke something internally and it's beyond our control or analysis to spot what it is. I mitigated my performance issues somewhat by creating a new catalog / starting anew, and not applying lens correction on import. I either save it for last or skip entirely.

The performance is slightly better that way but I can't say it's in any way or fashion 'considerably faster' as they market it. And the batch denoise feature is still hijacking the entire window for the duration of the process.

[Christophe5DE8]

And back to square one.

It sort of work when the supprot makes delete all sort of files. 

and the symptoms come back almost immediatly.

I lose my nerves trying to edit my pictures since 14.4 release. And I'm not impressed by the support so far..

Serioulsy thinking to ditch LrC completly

[Bryan-P]

I am having similar issues. LrC 14.4 seems to run MUCH slower on the same hardware with the same images/cameras. This is particularly noticeable for me when transitioning to/from the Develop mode and switching between photos. As the OP listed, these symptoms are a bit intermittent (sorry). Very noticable change with this upgrade.

Setup: Mac with Apple M1, 16GB RAM, Sequoia 15.5 (24F74)

[johnrellis]

@Bryan-P, have you enabled Catalog Settings > Automatically Write Changes Into XMP, and have you applied Denoise to more than a few photos? If so, see here:

https://community.adobe.com/t5/lightroom-classic-discussions/edit-changes-are-slow-to-appear/m-p/154...

[Bryan-P]

I do have auto write changes to XMP enabled, but have only run AI denoise on a handful of photos (<10? out of >50k), so am thinking it might be something else. Thanks for the tip, though. Sounds like I should be sparing with AI denoise until the next release.

[Christophe5DE8]

I found the root cause, and it's totally flabbergasting 😕
Bitdefender was interfering between my Wacom and LR. Apparently an update pushed at the same time as LR14.4 

See the thread : https://community.adobe.com/t5/lightroom-classic-discussions/display-won-t-refresh-with-wacom-pen-in...

The fact that the pen has to be lifted away from the tablet to "validate' the click, explain the randomness of the symptoms.

I indeed setup the exclusion in BitDefender and LR is back to normal again. 
Bitdefender support has been contacted as well.

I'm totally speechless on this one

[johnrellis]

Thanks much for that update on Bitdefender. Indeed an obscure, infuriating cause!