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J
Joann_luna
Participant
November 18, 2025
Frage

Slow uploading pictures

  • November 18, 2025
  • 1 Antwort
  • 264 Ansichten

The past couple of weeks, Lighroom Classic has been so slow to upload pics, change to a different picture, and do everything with editing. I'm on a 2021 Mac with M1 chip. At first, I thought my storage was running out but my storage is just fine. I need HELP PLZ!!! I have 2 photo shoots to edit and 1 coming up this weekend. I literally can't edit efficiently, it's WAY TOO SLOW. 

1 Antwort

arjunhaarith
Adobe Employee
arjunhaarith
Adobe Employee
November 18, 2025

Hi,

 

We’d like to gather a bit more information to help investigate this issue:

 

1. System Info:
Could you please share your Lightroom System Info?
(Lightroom → Help → System Info)

 

2. Disable Auto XMP Writing:
Please uncheck “Automatically write changes into XMP” to see if it improves performance:
(Catalog Settings → Metadata → Automatically write changes to XMP

 

3. Purge ACR Cache:
Try purging the ACR cache and restarting your system:
(Preferences → Performance → Camera Raw Cache Settings → Purge

 

4. New Catalog Test:
Do you experience the same slowness when working with a brand-new catalog?

 

5. GPU Status:
Please check the GPU status under:
(Preferences → Performance → GPU). You can toggle between Auto and Off to see if that makes any difference

 

6. Reset Preferences:
Several users have seen performance improvements after resetting Lightroom preferences. You can try this once:
(Preferences → General → Hold Alt and click Reset Preferences, then relaunch Lightroom)

 

7.Remove Old Presets:
A few users have reported better performance after removing or temporarily backing up older presets.
Go to:
/Users/xxxx/Library/Application Support/Adobe/CameraRaw/
Rename the folders Settings and ImportedSettings to Settings_bkp and ImportedSettings_bkp.
This will remove all user-created and imported presets from Lightroom — don’t worry, your presets are still safely stored in the renamed folders and can be re-imported anytime.
After doing this, collapse the Presets panel in the Develop module and check if performance improves.

 

 

Thanks,

Arjun

J
Joann_lunaAutor
Participant
November 18, 2025

1.  

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 26
Version: 26.1.0 [25B78]
Application architecture: arm64
Logical processor count: 10
Processor speed: NA
SqLite Version: 3.36.0
Adobe GSDK Version: 1.4.0.171

Power Source: Plugged In, 4%, Charging
Built-in memory: 16,384.0 MB
Dedicated GPU memory used by Lightroom: 3,374.7MB / 12,124.1MB (27%)
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 2,387.6 MB (14.5%)
Virtual memory used by Lightroom: 429,739.0 MB
Memory cache size: 23.2MB
Internal Camera Raw version: 18.0 [ 2389 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 4288MB / 8191MB (52%)
Camera Raw real memory: 5392MB / 16384MB (32%)

Cache1:
Preview1- RAM:22.0MB, VRAM:0.0MB, 1V2A7736.CR3
Final2- RAM:849.0MB, VRAM:500.0MB, 1V2A7714.CR3
NT- RAM:871.0MB, VRAM:500.0MB, Combined:1,371.0MB

Cache2:
m:23.2MB, n:263.8MB

U-main: 111.0MB

Standard Preview Size: 3456 pixels
Displays: 1) 3456x2234

Graphics Processor Info:
Metal: Apple M1 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF
GPU for Preview Generation: Auto (S5_11)

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/joannwalters/Pictures/Lightroom/Lightroom Catalog-v13-4.lrcat
Settings Folder: /Users/joannwalters/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr

Config.lua flags:

 

2.

Changed it. It's still pretty slow 

 

3. 

Did that, no change. 

 

4. 

Yes I do. 

 

5.

Helped a little. 

 

6. 

still slow but better. 

 

7. 

still being slow 

 

arjunhaarith
Adobe Employee
arjunhaarith
Adobe Employee
November 19, 2025

 

  • Were any of your images being synced to the cloud in Lightroom? If yes, please try disabling sync and check if that helps.

  • What is the size of your catalog on disk?

  • Did any of the images have AI-based edits applied (such as Denoise, Super Resolution, Reflection Removal, People Removal, etc.)?

  • Could you share the lrc_console.log file located at:
    /Users/xxxx/Library/Application Support/Adobe/Lightroom/

  • Please share the specific workflows where you’re experiencing slowness.

  • A short screen recording of the workflow where you notice the slowness would also be very helpful.

 

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