Lightroom CC: Navigating Between Images is Slow

  • 2
  • Problem
  • Updated 6 months ago
  • (Edited)
Sometimes when I navigate between images the "main image display" is not updated. Sometimes it is updated after a delay of 2-3 seconds. Most times it is instant.

I do not see the "sync indicator" while waiting for the image to load. I have originals stored on a network drive. This is annoying, especially when it fails to load the correct image.
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Henrik Helmers

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  • a little sad

Posted 6 months ago

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Rikk Flohr, Official Rep

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Henrik,

So I can attempt to reproduce what you are seeing now, how do you navigate? Mouse clicks? Arrow keys? Other?

Can you also provide some system information? Windows? Mac? Version?
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Henrik Helmers

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I can reproduce with mouse or keyboard, by clicking in the Film Strip. To make debugging a little easier, I made a screen recording. There are two instances where this happens and it pauses.

My system is a fast iMac with all the latest updates.



(Edited)
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Rikk Flohr, Official Rep

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Henrik,

I haven't been able to reproduce. I was able to cycle through 100 images without seeing a noticeable pause - let alone anything close to what I saw in your video example.  Let's get some system information. 

OS?
Version?
Lightroom Version? (Help>System Info...)
Ram?
Video Card?
GPU on or off?
Screen Resolution.
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Henrik Helmers

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Here are some specs:

MacOS 10.14.2 (Mojave)
Lightroom CC version: 2.1.1 [ 20181211-1217-31970e4 ] (Dec 11 2018)
32 GB 1600 MHz PC3-12800 DDR3RAM
AMD Radeon R9 M295X (4GB)
GPU on
5120 × 2880 display (2560x1440@2x)

In addition, I am using the option to store originals on disk, which is pointed to a Synology NAS connected via ethernet.
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Rikk Flohr, Official Rep

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Well, I have nearly identical specs (except I only have 16 GB of Ram). I do not use a NAS. 

How is your Nas connected?
How do you point to it? 
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Henrik Helmers

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Sorry for not responding. I thought I did but forgot. :(

I connect to an NFS share on my NAS, which is mapped to /Volumes/Photos. Physically the NAS and computer are connected to a switch over gigabit ethernet.

It does seem to be related to the NAS, as I tried reconnecting with SMB (for science), but then it was not recognized by Lightroom as the same drive, so it worked in offline mode. Which seemed to be without issue.

I only store the originals on the NAS as a backup, so I would be happy for Lightroom to keep it lazily in sync, instead of constantly updating and checking it.

I will consider moving files elsewhere.
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Rikk Flohr, Official Rep

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I suspect there is some latency related to the NAS that is causing the stutter.  Let me know how your 'science' proceeds. 
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Henrik Helmers

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I moved all images to the internal SSD. I still had the issue occur once, for about 10-20 seconds. I checked activity monitor and Lightroom CC was shown to take ~200%.

When this issue occurs it seems like Lightroom is queueing up a collection of images for rendering, with the selected image last in the queue. The selected image (as well as preview or metadata) is not displayed until the queue is cleared.

The NAS is probably making things worse, but I think there is an issue with how you handle changing images when the current image is not rendered.
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Rikk Flohr, Official Rep

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When you say you "moved all images to the internal SSD", did you also tell LIghtroom to use this location in the Preferences dialog or did you perform a file system move?
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Henrik Helmers

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I used the functionality in Lightroom CC and waited for it to finish. Which is not as bad as it sounds, read speed from the NAS is not too bad. :)
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Rikk Flohr, Official Rep

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Super. That was what I was hoping. 

If you start with a fresh launch of Lightroom CC and load an image into the E view then grab the film strip at the bottom and arrow through - how many images before it stalls? Then after the stall resolves, how many image with the right arrow till it stalls a second time.