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Slow performace and high CPU & RAM usage with Lightroom CC on desktop

New Here ,
Jan 24, 2025 Jan 24, 2025

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Every tasks run slowly on Lightroom, even switching between images took a long time to load in the edits (1-2s) and the cpu spike up to 100% usage and 14gb of ram. Especially when opening the masking menu, Lightroom would took 3-4s to fully load in everything. At the time, I was loading in an album with 11 photos, fully edited with remove, AI masking, blur, color...

 

I expected Lightroom to load everything instantly as my system is quite powerful and other Adobe apps run excellently with it.


My system specs:

Lightroom version: 8.1 x64 [ 20241205-0700-3674d7f ] (Dec 4 2024)
NGL Version: 1.39.0.9
WF Version: 7.1 8eff0d6
VF Version: 1.0.154
HIL Version: 40501
CAI Version: adobe_c2pa/0.9.3 c2pa-rs/0.31.0
PH Version: 5.0

Operating system: Windows 11
OS Version: Windows 11 Home Single Language (2009)
Application architecture: x64
System architecture: x64
Computer model: ASUSTeK COMPUTER INC. ASUS TUF Gaming A15 FA507XI_FA507XI / AMD Ryzen 9 7940HS w/ Radeon 780M Graphics
Logical processor count: 16
Processor speed: 3.9 GHz
Real memory available to Lightroom: 23777.0 MB
Real memory used by Lightroom: 4282.1 MB (18.0%)
Virtual memory used by Lightroom: 10803.3 MB
Memory cache size: 3319.5 MB

Internal Camera Raw version: 17.1 [ 2098 ]
Maximum thread count used by Camera Raw: 9
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 2256MB / 9840MB (22%)
Camera Raw real memory: 1923MB / 23777MB (8%)

Display: 1920x1080
System DPI setting: 110 DPI
Dark Mode: Yes
Desktop composition enabled: Yes
Input types: Multitouch: No, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: DirectX: NVIDIA GeForce RTX 4070 Laptop GPU (32.0.15.6636) - 8 GB
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: Yes, init: I4_GPU4, hard: success, soft: success, al: Yes, dl: No
OS Media Capability: true

Application Folder: C:\Program Files\Adobe\Adobe Lightroom CC
Settings Folder: C:\Users\admin\AppData\Roaming\Adobe\Lightroom CC
Library Folder: C:\Users\admin\AppData\Local\Adobe\Lightroom CC\Data

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Adobe Employee ,
Jan 28, 2025 Jan 28, 2025

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Hi @LanLP!

Where do you store your images—are they in the cloud or saved locally?

Could you try going to Edit > Preferences > Cache and clicking on Clear Cache? Also, we might want to enable "Store a copy of all smart previews locally in C:".

By the way, if you go to Edit > Preferences > Performance and set "Use Graphics Processor" to Off, does that change the performance at all?

Thanks a bunch!

Alek

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