Lightroom: Stuttering on Retina 5k iMac

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  • Updated 1 year ago
  • (Edited)
There have been comments on other forums about issues between LR 5.7 and the new retina 5k iMac; I have one with a 4.0 i7 and the 295 GPU.

In LR, when viewing a photo at 100%, 1:1, which shows it pixel for pixel on the retina iMac, it looks great. I'm working with RAW, BTW. I go into the Develop module, and when using a slider for say exposure, the transitions as I slide are very choppy, stuttering, and well ugly. It steps, it doesn't flow. BTW, the same thing happens in transitions if I do a slideshow. Others have experienced issues with cropping; for me it works fine.

If I simply enter a value, it seems to redraw quite acceptably. It's fast enough I couldn't compare it to doing the same thing on a 2560x1440 screen. Ditto with entering a numerical value. Other interactive sliders that show transitional states also seem choppy, like dragging the tone curve.

If I use a plugin via "edit in..." from within LR I have similar problems; I tried the same exposure slider in Tonality Pro, Silver Efex, and a couple of others.

For giggles and kicks I also tried some other applications, and ran the exposure slider test in those; I had no problems with Aperture, Tonality Pro (stand alone, not plugin), Graphic Converter, and Capture One Express. So it's not my machine. It's LR evidently.

I can kinda live with the choppiness, but it does make it a bit tougher to edit. I still get to the same end state. And I don't do slideshows in LR; that would be hideous; it's like watching hi-def over dial up.

Anyway to fix this?
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robgendreau

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  • frustrated

Posted 3 years ago

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Guillermo Ibanez

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Absolutely, this is a problem that is hitting my workflow badly. You would expect that buying a state-of-the-art computer would produce the same level of performance but......big fat NO
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Jo

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This reply was created from a merged topic originally titled new 5K retina iMac and slow performance in the Develop module.

The Develop module operation are slow on the new 5K retina iMac. This machine has the 4.0 GHz processor and upgraded GPU and 32GB RAM. It should be very fast, and in fact for operations such as import, export, and preview creation it is. But for Develop module functions it is much slower than my Macbook Pro Retina. When moving adjustment sliders, there is sometimes a delay of a second or more before the effect is seen on screen. The same operation on the other computers is nearly instantaneous. (All Lightroom 5.7)
Only if I start Lightroom in the lower resolution (changed in the general settings of the App), then it is also fine on the 5K retina iMac.

Adobe should put some sort of logic in the program that simply calculates at lower resolution and only when you release a slider does the entire image for the 5K Display.
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Manuel Burgmann

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i also noticed, when i reduce the resolution in my iMac general settings, then everything works fine and without delays and stutter.
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Waldemar

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Same problem here :-(
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Darius Valskys

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Same things in Develop module (slides and transitions very choppy, stuttering) in Photoshop. Only solution so far - start Bridge and Photoshop in low res mode.

Awaiting solutions/updates from Adobe. PS. Apple's Apertute works smoothly
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Felix Schmitt

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Same here.

If I want the Camera RAW Module to be as responsive as on my 2009 iMac 27" working on D800 or Fuji X100s data I have to check lowres for CC and scale down the camera RAW window to maybe 1/4th of the screen. This needs to be addressed.
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Darius Valskys

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eagerly awaiting Adobe products updates for iMac 5k
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Manuel Burgmann

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I have the same problems. Slow performance in Lightroom it works really delayed and choppy. I also have problems with the performance in Photoshop, here is my report about that: http://gsfn.us/t/4onmz

I've noticed when i change in my display setups on my Mac, the resolution from "Default for display (looks like 2.560*1.440)" to 2.048*1.152, Lightroom and Photoshop runs normal. So i think the problem is the resolution of 5k. I hope Adobe comes with a update for the 5k retina iMac's.
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robgendreau

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I don't have as obvious a problem as some. But I have heard that using a smaller size, say 1:2 or 1:4 for the photo can help without having to change the resolution of the whole monitor.
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Thomas Jacobi

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I'm so frustrated. I have this beautiful new iMac 27" with Retina display, fully loaded with 32GB RAM - and the performance of Lightroom 5.7 is an absolute nightmare on it. It actually worked much better on my old machine. And whatever I change (resolution, window-size): it doesn't really help.
PLESAE YOU PEOPLE FROM ADOBE: get your act together and do something. Capture One works great, why can't you fix your program?
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robgendreau

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Rumors have it that LR6 is making use of OpenGL...maybe help is on the way.
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Felix Schmitt

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Thomas, It's a complete disaster and it's the same for me. Late 2009 iMac delivered a better performance editing D800 and S2 raw data. My work-around right now is starting LR in lowres and cranking up the camera RAW cache up to 100GB+. At first you'll think that it's horrible because all the fonts are pixelated but at least you get a workflow back that actually can be called "flow". Hope that might help you.
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Manuel Burgmann

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Felix vielen vielen Dank für diesen Tipp! Habe nun auch ein Häkchen bei "in niedriger Auflösung öffnen" gesetzt und nun läuft Lightroom wenigstens wieder einiger Maßen schnell! Sieht zwar in der Auflösung nicht sehr hübsch aus, aber dafür läuft Lightroom endlich wieder besser. Ich hoffe mit Lightroom 6 werden all diese Probleme geflößt... Auch von Photoshop...

Grüße Manuel
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Felix Schmitt

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Manuel,
wir hoffen alle zusammen. Alle Threads in denen ich drin bin werden zunehmend zu Selbsthilfegruppen. Freut mich, dass das bei dir geholfen hat, so nach einer Woche sehe ich's schon garnicht mehr, also das Aufgepixelte. Man gewöhnt sich an alles (...aber gut isses nich'.)
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Manuel Burgmann

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Hallo Felix, ich bin nun schon seit einiger Zeit mit dem Adobe Support DE in Kontakt... Heute kam erst wieder eine Mail, dort stand: Die Fachabteilung ist nicht in der Lage das Verhalten nachzustellen bzw. nachzuvollziehen oder ausfindig zu machen.... Ich frage mich langsam ob überhaupt nach einer Lösung für dieses Problem gesucht wird? So kann es jedenfalls nicht weitergehen...
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Jorge Romero

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La mejor opción es abrirlo en Baja resolucion, esperando que los siguientes versiones lo solucionen
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Marc Matsumoto

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I'm having the same issue with the following config:

iMac (Retina 5K, 27-inch, Late 2014)
Model Name: iMac
Model Identifier: iMac15,1
Processor Name: Intel Core i7
Processor Speed: 4 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 32 GB

My 2013 Retina MBP so much faster I'm considering switching back to it for my editing.
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iDeMi

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Makes me think again if this is the right time to purchase an iMac 27 retina.
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Darius Valskys

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I am loosing patience with this issue. Nearly 6 months and no fix. Please Adobe and Apple !!!!!
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Chris Cox

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Apple is aware of the issues introduced in MacOS 10.10, and working on solutions.
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robgendreau

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Great...seems like at least we're not imagining this, and that someone somewhere has endeavored to fix it. Any details from Cupertino...or work around?
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Thomas Jacobi

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I wouldn't be put my hopes on Apple. It's clearly identified as an Adobe problem.
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Chris Cox

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No, nothing here has identified this as an Adobe problem, and MacOS 10.10 does have a lot of graphics performance depredations and other bugs that Apple is working to solve.
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Joseph Land

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Wow!  I just bought a brand new 5k iMac and my 2013 MBP blows it out of the water.  Same issue, it's painfully slow and laggy and makes post processing a frustrating experience. 
It is pretty clear that this issue isn't going to get fixed.  With the new MBP disappointment looks like i'll be transitioning back to PC.  Not as great as apple used to be but way cheaper
(Edited)
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Marc Matsumoto

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This actuallly got fixed for me somewhere along the line with a Lightroom update, I guess it wasn't optimized for 5k displays. My MBP is still a hair faster loading images, but I think this has more to do with the difference between the SSD in my MBP and the HDD in my iMac. I just picked up the new MBP and it's a beast in Lightroom
(Edited)
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Felix Schmitt

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I'm on the retina iMac and am a CC subscriber, the last update of CC ( Photoshop CC 2017) and the most recent Lightroom instalment made things a lot better.  Using OSX 10.12. Before PS was only bearable executing in low-res mode, no it's not an issue to run in retina resolution.