Lr Classic on M1 MacBook Air is glacial

Community Beginner ,
Nov 23, 2020

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Hi all,

 

I've used Lightroom for a long time, and importing thousands of files used to take maybe a few minutes at the most (on an old 2013 MacBook Pro).

 

I just got a new 2020 M1 MacBook Air (1 TB/16 GB RAM), loaded up Lightroom Classic 10, and tried to import 26000 files from a local folder. It took well over 30 hours. I ran a similar test, importing 500 files - it took over a half hour. I'm talking about simple jpegs from an iPhone. Default settings in the catalog and Lightroom.

 

I even rebooted the MBA in Safe Mode to make sure the system was as clean as possible (it's brand new, so there's almost nothing on it anyway). Still, glacial performance. Everything else on this machine is absolutely blazing fast, both network and CPU. Lightroom is clearly broken.

 

I've seen similar posts with no solid solutions. Is there any hope or is this the end of Lightroom for me?

TOPICS
Import and export, Performance, Problem or error

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LEGEND ,
Nov 23, 2020

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M1 not yet supported at Adobe.

 

May or may not be supported, some confusion on that

 

see: https://helpx.adobe.com/lightroom-classic/kb/macos-big-sur-compatibility.html

 

Not a M1 owner, not a Big Sur user, in the link, Rosetta 2 emulation is mentioned.

 

hmm, also see:

 

https://www.engadget.com/rosetta-2-will-keep-old-intel-apps-running-on-apples-new-silicon-182442712....

 

 

 

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Pixbug AUTHOR
Community Beginner ,
Nov 23, 2020

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I checked the compatibility (from that first link) before installing, and saw:

 

> There are no known issues specific to running Lightoom Classic 10.x under Rosetta 2 emulation mode on Apple devices with M1 processors running macOS BigSur (version 11).

 

Didn't seem confusing... just wrong 🙂

Unless of course the problems really aren't specific to M1 processors and Big Sur.

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LEGEND ,
Nov 23, 2020

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Are you runnung Rosetta 2 emulation?

 

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Pixbug AUTHOR
Community Beginner ,
Nov 23, 2020

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Yes - that's the only way it can run.

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Contributor ,
Nov 23, 2020

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i have your same machine, just installed LR classic and downloaded everything from my LR cloud....it hard for me to tell how fast slow it is, compared to LR (cloud), classic seems a lot slower but then it always has felt sluggish (which is why i have used LR )....i would not say LRclassic runs slow though...i work with hasselblad raw files and the lag i see on my external monitor should be taken care of by software optimisation....

adobe says lightroom will come in 2020, does that mean LR or LRclassic? 

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Adobe Community Professional ,
Jan 21, 2021

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pschefz wrote:

“adobe says lightroom will come in 2020, does that mean LR or LRclassic?”

 

The Apple Silicon native version of Lightroom Classic is coming some time in 2021, according to their help article:

Apple Silicon compatibility

 

Lightroom (not Classic) is already Apple Silicon native right now.

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LEGEND ,
Nov 23, 2020

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Deleated, my bad

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Pixbug AUTHOR
Community Beginner ,
Dec 09, 2020

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Just to follow-up for anyone who's ended up here...

I've contacted Adobe Support multiple times, and no suggestions have helped.

I especially loved their suggestion, "Install Rosetta 2 and contact Apple".

I installed LrC 9.0 and tried that too. It still took nearly 10 seconds per image to import.

 

I did one last test, importing 100 iPhone photos (3MB jpegs):

Lightroom 10.0 on 2020 M1 MacBook Air: 17 minutes

Lightroom CC (2016) running on 2013 MacBook Pro: 31 seconds

 

So... I'm giving up until Adobe releases an Apple Silicon version of LrC. Hope it's better!

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New Here ,
Jan 04, 2021

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Same problem here.  Seems to use all system memory:

Lightroom Classic version: 10.1 [ 202012012023-e92d50bb ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 10
Version: 10.16.0 [20C69]
Application architecture: x64
Logical processor count: 8
Processor speed: 2.4 GHz
SqLite Version: 3.30.1
Built-in memory: 16,384.0 MB
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 17,592.7 MB (107.3%)
Virtual memory used by Lightroom: 15,376.2 MB
Memory cache size: 1,127.8MB
Internal Camera Raw version: 13.1 [ 658 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 209MB / 8191MB (2%)
Camera Raw real memory: 211MB / 16384MB (1%)
Displays: 1) 5120x2880

Graphics Processor Info:
Metal: Apple M1

 

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LEGEND ,
Jan 04, 2021

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New Here ,
Jan 21, 2021

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Same issue here.

Its taking me about a minute to import 1 photo on my brand new M1 mac mini.  Tried restarting the mac, updating everything... still not working properly.  Its horrible so far.  How am i supposed to work?

How come some users are having this issues while others are not?

 

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Pixbug AUTHOR
Community Beginner ,
Jan 21, 2021

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Interesting to hear that it's on the Mac mini as well. I've tested every update with the same results: import is just too painful to use. It only uses about 1 GB out of 16 GB of RAM during import too.

But you're right, the real question is why only some users have this issue. If Adobe actually cared about fixing this they'd probably be asking usesrs to sample the app in the Activity Monitor to find out what threads are doing what. Instead I've just gotten the brush off.

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Adobe Community Professional ,
Jan 21, 2021

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This forum is primarily intended for customer to customer support and is very rarely visited by Adobe QE or Dev team members. If you have something you want to comminicate with Adobe, then best submit your issue at https://feedback.photoshop.com/topics/lightroom-desktop-cloudbased/5f5f2093785c1f1e6cc40874 , which is the forum Adobe personnel monitor.

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New Here ,
Jan 21, 2021

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I'm having the same issue as well. I'm running on the the 2020 MBP M1 8GB RAM. At some point, the LR Classic 10.1.1 takes forever to open and many times it doesn't respond at all. This is very disappointing. Hopefully, Adobe addresses this issue soon. 

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Adobe Community Professional ,
Jan 21, 2021

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Adobe has not provided a timeframe for shipping an M1 native version of Lr Classic. So, 'soon' is a tad optimistic.

 

Regarding your issues - see https://www.reddit.com/r/Lightroom/comments/kc1b7s/lightroom_classic_on_2020_m1_macbook_pro_with_8gb... as some of the suggestions may be more benificial (I'm stretching the definition somewhat) than here

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New Here ,
Feb 24, 2021

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I've been having a similar experience with my new Macbook Air M1 8gb. Chose this after seeing comparisons with 16Gb model showing neglible  performance improvements.

Another thread mentioned their 4K monitor being the issue. I changed the optimisation setting to "Built-in Retina Display" instead of the monitor itself and this does seem to have made a general improvement overall across web browsing and LR. There is much faster performance while editing in LR but it's not without the occasional lag. To be honest not the mind-blowing performance that the numerous reviews I watched promised. 

I still need to test the speed of the external HDD I'm using being partially to blame.

As an aside...suddenly on the new Macbook Air (coming from a 2015 Macbook Pro) I get images not importing properly (LR has a problem reading this image) and need to re-import. Also the import process often stalls before completing and I have to re-start it?


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