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14 Messages

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396 Points

Fri, Jul 26, 2019 2:54 PM

Lightroom Classic: Poor Performance on Mac with 5K display

Lightroom is broken. 

I recently purchased a new 5K iMac, reasonably well specced up, and certainly far beyond the recommended system requirements. And Lightroom performs like a one-legged donkey on it. 

I've been using Lightroom since the first release and loved it right from the start. It allowed me to edit photos with an ease and control that I could never manage in Photoshop. But now, for the first time, I'm considering abandoning it in search of something that actually works.

There are endless reports online, on Adobe's forums in particular, about how poorly Lightroom runs on the 5K iMac. And these have been acknowledged by Adobe Staff Contributors. Yes, I understand that the resolution of a 5K display is demanding and resource intensive, however I don't have any issues editing in Affinity or Capture One, or any other graphics/processor intensive software I use for that matter. So inevitably the issue comes back to Lightroom and how it has been designed.

I've followed every troubleshoot step I can find regarding this issue in the hopes of resolving it, and have had Adobe support screen share to do their thing. Nothing has helped the situation. So I'm left with a piece of software that I'm paying good money for, and which is currently essential to my workflow, but which I simply cannot use.

What's the answer here? It seems this is an issue that has been reported for a number of years so I'd ask why nothing has been done about it?

I'd like to be able to continue to use Lightroom. It's still in my mind the best all-round photo editing software, but in it's current state I (like many others) have no choice but to look elsewhere.

Responses

6 Messages

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110 Points

4 months ago

Ok beacuse I'm looking to pick up a imac 27 5k from 2017 with mve 256 gb or an SSD 500gb and with 16 gb ram and I'm gonna a upgrade it to 32gb and the processor is an i5 3.2 Hz and the graphic card is 4gb.
Will this work? Don't want to spend more money beacuse that's already like 1600$ for a used one here in sweden.

Don't know if I need 5k either so also looking on 2015 with almost same speccs but without 5k and it's 2gb in graphics memory.

799 Messages

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11.5K Points

Definitely go for the 5K one! 32GB is good!, 4GB GPU is a minimum. Note: I have 64GB and 8GB GPU, for future-proofing! I'd go with the 500GB hard drive, even if you have external drives for your images (mine are on an external RAID).

1 Message

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62 Points

4 months ago

Thank you to all who contributed to this thread!! It has been very illuminating and helpful! For those of you who made the decision to switch to Capture One, are there any tips you could offer that eased the transition? File format, best way to retain metadata, RAW vs DNG, etc. Thanks.

644 Messages

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8K Points

4 months ago

4GB is not enough for the GPU. Monitored on Windows and I expect the same for macOS as this is not an operating system issue, a 4K monitor uses 4.5 GB of GPU memory. You need at least 6GB for a 5K monitor. Yes 4GB is better than a lower amount of RAM but if you are spending this much on a computer, then you should get enough GPU RAM. Also an i5 is an inadequate processor, we'll be seeing your performance complaints on this forum with that system. Too many internal bottlenecks on an i5, you would be better off with a MacPro from the same era with one or 2 Xeon processors if you can afford it.  
  

6 Messages

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110 Points

4 months ago

Ok don't have that kind of money today to spend on a imax with a xeon processor. Just gonna buy something that I can edit on smoothly.
I've used an iPad pro 12,9. Gen 3 which has worked fine but that's lightroom mobile.
So am I better to choose a MacBook pro let's say a 2016 with an i7 or an i5 and dual graphics cards.
Beacuse they aren't 5k either.
Or is it the same problem on imacs with the 2k resolution also. Beacuse they are cheaper and I don't really need 5k really so a 2k would be sufficient for my needs.

If nothing else I have to build myself a pc with an external monitor with a good graphics card like a 2060 or something and 32gb ram and an i7 processor

644 Messages

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8K Points

4 months ago

You'll get a lot more performance for $ with a Windows system such as the refurbished HP Z440 that I use (6-Core Xeon, 64GB RAM, Samsung Pro SSD for the OS...) but if you prefer Apple, then you'll get much more performance with the 2K iMac than the 5K model. The color accuracy is also very good, especially if calibrated. You can pickup a Spyder3Pro used for not much money. My wife has a 5 year old 2K iMac i5 and it runs ok as long as you are patient with importing and exporting, they I/O systems on Macs without Thunderbolt 3 are slow. Develop runs well and I think that most people who are not engaged in professional production activities would find it acceptable. We just start the imports on her machine and then go take a break. A MacBook or iMac of the same generation are essentially the same thing, an iMac just has a MacBook Pro motherboard inside a monitor, in either case repairs are expensive and expansion limited. 
 
One warning, Intel produced a few generations of i7s without hyperthreading, you definitely don't want one of those. I don't know whether Apple ever used those chips but if so then a hyperthreading i5 would be a better choice than a non-hyperthreading i7. Just search on the model i7 specs and choose the Intel result, that will take you to the page that provides the hyperthreading info. 

6 Messages

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110 Points

4 months ago

Ok good points. Looking at another dell Xps also which I know is a good laptop to edit on.
Just thinking if the best way is to go with a 24 inch 4k screen and build me something with a good cpu, gpu and ram isn't the easiest way to go.
I'll also will look up the HP z440 as an option. Good answers. To bad beacuse what I really wanted was a 27 5k imac but I'll have to find something else instead. It's just the look and design of it that I was after. Don't care for Mac In other cases.

6 Messages

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110 Points

4 months ago

Found this. It should do the job

6 Messages

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110 Points

4 months ago

Or will i be able to go with a V3 also 6 core similar speccs but with a qaudro p2200 gpu instead.
Found a 4k screen which is perfect for my needs and also a cheap one. Not looking to pick the best there is. Just good value for the money.

644 Messages

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8K Points

4 months ago

I've had both the E5-1650 V3 and the V4 and frankly didn't notice any difference. I upgraded the Quadro from a K1200 (4GB) to a P2200 (5GB) and also didn't see any difference though a 4K monitor needs 4.5GB on the GPU so a scientific test would probably show the P2200 to be faster. The P4000 will give you enough RAM to support a 5K monitor which I don't recommend for Windows. Almost nobody uses 5K monitors on Windows and therefore the driver support is sketchy. I used a 5K monitor for almost 2 years before giving up, it was not usable for 2-3 months of every year until Nvidia would fix the driver and then break support with the next driver update. I now run two 4K monitors and run Lightroom full screen on just one. My drive C is a HP Z-Turbo Drive, 512GB which houses a Samsung Pro. Configuration:
  • C - HP Z Turbo Drive - OS and application programs 
  • F - Samsung 860 EVO 2TB - Google One - contains all important personal data as well as a copy of the Lightroom library and catalog including catalog backups. G - WD 8TB HD - music and video storage, not used by Lightroom 
  • H - WD 8TB HD - internal to drive case, backup of everything except the C drive
  • L - WD 8TB HD - external copy of drive H, normally resides in a fire safe
  • P - Samsung 860 EVO 2TB - Dedicated to Lightroom library, catalog and cache with Samsung RAPID mode activated. This drive is on a PCIe adapter card which doubles the performance.   
  • W - Samsung 840 EVO 1 TB - general work drive, Lightroom exports, etc. 
So why don't I put the Lightroom library in the Google One folder? Performance. To ensure file integrity, every update or copy of a file to the Google One folder causes the file to be locked until it has been uploaded to the Google Cloud.This added 1-2 seconds to every develop action. This is why most other cloud services run faster and have integrity problems. I've tried Amazon, Dropbox and Microsoft; Google gave me the best results. 
 
Monitors:

  • BENQ PD3200Q - very good for the price and is my primary monitor for Lightroom. It calibrates to essentially 100% sRGB. 
  • Dell P2715Q - the main monitor for all other use. Failed and replaced while in warranty (probably the power supply). Color quality essentially identical to the BENQ. 
  • HP 5K Z27Q - beautiful monitor when the drivers worked, haven't used it in 2 years. Viewing the same image side by side with the Dell, the HP was slightly superior but then, it was 3 times as expensive and about 100% Adobe RGB. Will probably replace my wife's 7 year old iMac with a Mac Mini and then with a converter box, connect this monitor to that. 
If you decide to go with a laptop be sure to get one with an anti-glare display. Otherwise the colors will get muddy if there is any amount of light in the area where it is being used. I think the MacBook Pro and Dell XPS both offer these displays. 

 

1 Message

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10 Points

2 months ago

Unfortunately you are not the only one with imac 5k lightroom problems.

I have just found out my imac does weird after using LR for 15 minutes or so...my screen starts flickering and looks like the imac is dying slowly...  So after looking for this problem, I came on this page.

 

It is very sad and disappointed to read that this is not something Adobe would fix.

 

Regards

43 Messages

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408 Points

This isn't anything Adobe can fix. I have a 2019 5K iMac and everything is fine, as are the overwhelming majority of 5K iMac users. This means, wait for it, it's you! (Or rather, your iMac). Try this:

 

Download the free Onyx (https://www.titanium-software.fr/en/onyx.html), select the Onyx version for your OS, download, run it, reboot.

 

In Onyx run almost everything in the Maintenance tab, deselecting things you may not want deleted, like Launch Services . Hit the "Options" button across from "Internet" and check/deselect more stuff like Cookies & Other Site Data, Browser History, Form Values, (which are OFF by default), but make any other choices you want to keep. If you don’t know what something is, google it, or don’t run it, or ask me, then hit Run Tasks. After it's done it will ask for a reboot.

 

Also try to fix any directory damage by running Disk First Aid from Disk Utility: boot into Recovery Mode, (hold down Command-R when booting). When you're in Recovery Mode go to the Utilities menu and launch Disk Utility, say Repair Disk. When done go to Apple Menu for Startup disk and restart normally.

 

Have you tried resetting your prefs? To reset your LR preferences: 

 

1. Close Lightroom. 

2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom. 

3. Overwrite the Preferences when prompted by the dialog. 

4. Close Lightroom. 

5. Restart Lightroom

 

Also, try creating a blank new catalog, import some photos as a test. Does it run OK? If so, then it's your catalog. If it doesn't, maybe there's a hardware issue with your iMac (take it to the Apple Store).