Participant

Answered

Lightroom classic is slow

Forum|Forum|10 months ago
May 29, 2025
7 replies
2218 views

Hello, The software has been very slow since the last update. I have an XPS 15 laptop with 64GB of RAM. When I'm working in Lightroom, I constantly have to close everything and restart to regain some speed. However, neither the processor and the RAM ever exceed 40% and 30% of their capacity under Windows.

What can i do ?

Windows

Correct answer APontes

Bonjour Jean francois! Tout d'abord, je tiens à vous remercier pour votre commentaire, qui a mis en évidence quelque chose que je n'avais pas encore fait et a résolu mon problème.

Acho que consegui resolver o problema. Além dos lixos de aplicativos desnecessários do Windows e que deveria ser opcional instalar ou não, eles ainda não por satifeitos ativam IA sem resolver vários problemas de bild corrompidos e atualizações que corrompe o sistema operacional. É uma pena que a maioria dos programas da Adobe, não são oficialmente suportados no Linux.

Vamos lá:

Primeiro fiz outra formatação limpa do Win11 e quando chegou na parte selecionar idioma você dá um F10 vai acessar o cmd administrador e vai digitar

START MS-CXH:LOCALONLY enter

vai seguir a instalação sem ativar a conta microsoft e sem instalar todos os aplicativos que não são úteis incluindo o OneDrive que de fato é um dos grandes vilões de diminuir o rendimento da máquina.

Depois disso já no win na área de trabalho sem fazer nada apenas entgre no cmd administrador e digita esse comando:

oobe \bypassnro enter

reinicie a máquina vá no c: depois usuarios depois acesse uma das pasta voce vai ver a pasta do onedrive vazia pode excluir e o mal se foi.

Eu reparei em uma conversa sua no grupo e vim para agradecer o comentário que me fez despertar pelo assunto que eu não tinha me ligado. Verificar se o Drive Studio estava instalado ou faltava atualização. E acredite estava sem instalar pois o que estva atualizado na máquina era o drive game ready. Fiz a instalação do Drive Studio e fluiu tudo bem. Instalei a versão 576.52 lançada 19.maio.2025.

É isso, agradeço a todos e Adobe por criar esse meio de comunicação de todos os usuário pelo mundo.

um abraço, bonne chance et à bientôt

APontes

* É tempo de Botafogo, o melhor do mundo! *

Brasil

Marian_C

Participant

Resizing the window was the only thing that worked for me.

Nothing else made a difference. On macOS, everything runs perfectly. But on Windows, it's a frustrating experience. It seems Adobe still can’t scale properly on high-resolution displays, and performance suffers—especially when it comes to RAM handling. This has been a persistent issue for years, and it’s still not fixed.

Honestly, it’s another reason to consider moving away from Adobe products.If you're using a 4K screen or higher, the only workaround I found was to resize the Lightroom window to half its size. That instantly improves image loading speed in Develop mode. Library mode works fine because it doesn’t need to load masks and all the detailed adjustments.

APontes

Inspiring

Minha máquina só tem o Adobe Lr Classic e o Office nada mais. Todos as fotos trabalhadas estão em um Hd Externo. Portanto ele está liso e nada para ter qualquer tipo de gargalo.

Tenho uma

GeForce NVidia RTX 4060, I9 - 12900HX, Win11 Pro com 64 GB.

MassC

Legend

Hi @21149932_amazement5CB3 / @APontes,

It appears you have started another thread here: https://adobe.ly/4kFvZlR based on a recommendation from one of our legends. Please continue to respond to that thread there to ensure clarity. Thank you!

^CM

Dăuceanu

Participating Frequently

Hi!

I have the same problem. I work on a Macbook Pro M2 with 8GB RAM and it is unusable. It is the same laptop that in the sommer of 2022 (about v12) was flying with Lightroom and Photoshop. Right now I am very frustrated. It takes a few seconds to load one RAW file. I am looking for alternatives because as I understand, Adobe is not optimising the software for M processors. It is just a joke. Today I erased (reset) the laptop hoping to solve something, I dont know. It is absolutly the same useless software. Thank you

APontes

Inspiring

Meu Lr está bem lento para exportação e leva agora 1h para concluir 4.352 fotos o que antes levava 18minutos. Será que o problema está no código fonte do programa?

APontes

Inspiring

Boa tarde Jean O meu também está lento e continua. Ja fiz de tudo e nada resolve. Já formatei do zero 2x e nada. Espero que adobe possa me ajudar aqui.

dj_paige

Legend

Hello @Dăuceanu and @APontes

It would be best if you start a new thread and explain your problem in detail, stating clearly what is slow and what hardware you have. People will be happy to help you in a new thread. Please do not continue to discuss your problem in this thread.

APontes

Inspiring

Seria aqui mesmo pq eu tinha feito isso em outra sala.

dj_paige

Legend

Slow doing what tasks in Lightroom Classic? Please be specific and detailed.

Please also check to make sure that synching with the cloud is off, face detection is off, address lookup is off. If you are someone who doesn't use one or all of these features, don't say "I don't use those", that's not what I want you to do. I want you to visually check that these are off (or paused).

jean-francoisl71678504Author

Participant

Thanks, yes i have look and it's on paused.

Ok it'S slow when i change the picture in development and when i work on the picture.

But i put the latest version of me Nvidia card driver and now it's a little bit faster.

I also unlock "Limit the memory cache video" and put "Use Graphics Processor" on "auto"

APontesCorrect answer

Inspiring

Bonjour Jean francois! Tout d'abord, je tiens à vous remercier pour votre commentaire, qui a mis en évidence quelque chose que je n'avais pas encore fait et a résolu mon problème.

Vamos lá:

Primeiro fiz outra formatação limpa do Win11 e quando chegou na parte selecionar idioma você dá um F10 vai acessar o cmd administrador e vai digitar

START MS-CXH:LOCALONLY enter

Depois disso já no win na área de trabalho sem fazer nada apenas entgre no cmd administrador e digita esse comando:

oobe \bypassnro enter

reinicie a máquina vá no c: depois usuarios depois acesse uma das pasta voce vai ver a pasta do onedrive vazia pode excluir e o mal se foi.

É isso, agradeço a todos e Adobe por criar esse meio de comunicação de todos os usuário pelo mundo.

um abraço, bonne chance et à bientôt

APontes

* É tempo de Botafogo, o melhor do mundo! *

Brasil

AxelMatt

Community Expert

@jean-francoisl71678504 Please provide a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 6 - Topaz Photo AI

jean-francoisl71678504Author

Participant

Version Lightroom Classic: 14.3.1 [ 202505061331-b063faef ]

Licence: Creative Cloud

Paramètre de langue: fr

Système d'exploitation : Windows 11 - Home Premium Edition

Version : 11.0.26100

Architecture de l'application : x64

Architecture du système : x64

Nombre de processeurs logiques: 20

Vitesse du processeur : 2,9Ghz

Version SQLite: 3.36.0

Utilisation du CPU: 1,0%

Source d’alimentation: Branché

Mémoire intégrée : 65207,0 Mo

Mémoire GPU dédiée utilisée par Lightroom: 1532,3Mo / 7951,0Mo (19%)

Mémoire réelle disponible pour Lightroom : 65207,0 Mo

Mémoire réelle utilisée par Lightroom : 20515,6 Mo (31,4%)

Mémoire virtuelle utilisée par Lightroom : 22285,4 Mo

Nombre d'objets GDI : 974

Nombre d'objets utilisateur : 3213

Nombre de processus gérés : 7166

Taille de la mémoire cache : 4753,6Mo

Version interne de Camera Raw: 17.3.1 [ 2227 ]

Nombre maximal de liens utilisé par Camera Raw : 5

Optimisation SIMD de Camera Raw : SSE2,AVX,AVX2

Mémoire virtuelle de Camera Raw: 1432Mo / 32603Mo (4%)

Mémoire réelle de Camera Raw: 1463Mo / 65207Mo (2%)

Cache1:

NT- RAM:0,0MB, VRAM:0,0MB, Combined:0,0MB

Cache2:

m:4753,6Mo, n:0,0Mo

U-main: 106,0Mo

Paramètre PPP du système : 144 PPP (mode haute résolution)

Composition sur le Bureau activée: Oui

Taille d’aperçu standard: 3862 pixels

Affichages : 1) 3456x2160, 2) 3840x2160

Types d'entrée: Tactile multipoint : Oui, Tactile intégré : Oui, Plume intégrée : Non, Tactile externe : Non, Plume externe : Non, Clavier : Non

Informations relatives au processeur graphique :

DirectX: NVIDIA GeForce RTX 4070 Laptop GPU (32.0.15.6590)

État initial: GPU pour l'exportation pris en charge par défaut

Préférence utilisateur: Désactivé

Dossier de l'application : C:\Program Files\Adobe\Adobe Lightroom Classic

Chemin d'accès à la bibliothèque : C:\Users\paule\Pictures\Printemps 25\Printemps 25.lrcat

Dossier des paramètres : C:\Users\paule\AppData\Roaming\Adobe\Lightroom

Modules installés :

1) Adobe Stock

2) Canon Print Studio Pro

3) Flickr

4) HDR Efex Pro 2

5) Loupedeck2

6) Paramètres du plugin

Marqueurs Config.lua:

Adaptateur n° 1: Fournisseur : 10de

Appareil : 2820

Sous-système : beb1028

Révision : a1

Mémoire vidéo : 7951

Adaptateur n° 2: Fournisseur : 8086

Appareil : a7a0

Sous-système : beb1028

Révision : 4

Mémoire vidéo : 80

Adaptateur n° 3: Fournisseur : 1414

Appareil : 8c

Sous-système : 0

Révision : 0

Mémoire vidéo : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Speakers (Realtek(R) Audio)

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x26

Direct2DEnabled: false

GL_ACCUM_ALPHA_BITS: 16

GL_ACCUM_BLUE_BITS: 16

GL_ACCUM_GREEN_BITS: 16

GL_ACCUM_RED_BITS: 16

GL_ALPHA_BITS: 0

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_SIZE: 32768

GL_MAX_TEXTURE_UNITS: 4

GL_MAX_VIEWPORT_DIMS: 32768,32768

GL_RED_BITS: 8

GL_RENDERER: NVIDIA GeForce RTX 4070 Laptop GPU/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 565.90

GPUDeviceEnabled: false

OGLEnabled: true

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Noel Orridge

Community Manager

Hi @jean-francoisl71678504 Thank you for reaching out and providing the system information AxelMatt asked!

Here are a few things you can try out to improve the performance:

1) Optimize Catalog: Go to File > Optimize Catalog and let Lightroom perform this maintenance task.
Increase Camera Raw Cache Size: In Lightroom, go to Edit > Preferences > Performance. Increase the Camera Raw Cache Size to 10GB or more. Consider placing this cache on your fastest SSD if it isn't already.

2) Standard Preview Size: Ensure your standard preview size (in Catalog Settings > File Handling) isn't unnecessarily large for your typical viewing habits.

3) Check for a GPU related issue: Go to Edit > Preferences > Performance.
Try setting "Use Graphics Processor" to Off. Restart Lightroom and test.
If that helps, there's likely a GPU-related issue. If it doesn't, set it back to Auto or your preferred setting.

4) Reset Lightroom preferences: Backup your preferences first! (Find locations here: https://adobe.ly/3HfsYu8) and copy-paste the file to a safe location.
To reset, hold down Alt + Shift (Windows) while launching Lightroom Classic. Confirm that you want to reset preferences.

5) Hard Drive Space: Ensure your system drive (C:) and the drive where your Lightroom catalog and previews are stored have at least 20-25% free space.

Try these out and see if it fixes anything and let us know how it goes!

For more information you can refer to this Helpx article. https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html

Cheers!

Noel

Ganji12

Known Participant

We're waiting for the experts.
But I bet the problem is with the video card. And since Adobe isn't interested, they'll just tell you to disable it, and it won't work as well as before, but it'll be more stable.

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