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161 Messages

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3.4K Points

Thu, Oct 18, 2018 12:36 AM

Lightroom Classic CC: Slow switching between photos

Good god.

Why is LR, after 11 years, still so flippin' slow at switching between photos. Library Module, Develop Module, every hardware, RAW type and software configuration known - it makes no difference. LR crawls through photos and it's getting to be a bit ridiculous. I'm not asking for much - just faster than 3 seconds moving between 24MP RAW (CR2 and RAF) files on a 4K monitor. I don't care how many features Adobe adds at this point.

I just want speed -  speed like every other software seems to be capable of providing, but for whatever reason, alludes LR. 

I'm sorry for venting, but I edit about 500 photos per day and those 3 seconds between photos really starts to add up.

Responses

Adobe Administrator

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8.2K Messages

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118.2K Points

2 years ago

jbedford, could I get some system specs from you?

OS?
Version?
Processor?
Video Card?
Ram? 
Hard Drive Configuration? 

3 Seconds is a long time to wait when walking images. Is Library or Develop slower? 
 

Adobe Photography Products

Quality Engineering - Customer Advocacy

161 Messages

 • 

3.4K Points

Windows 10 64 (latest)
LR (latest as of today)
i7 4770K OC'd from 3.5 to 4.2 (stable)
GTX 1070
32GB 1867GHZ
2 SSD's. One for OS and software, another for catalog and previews. 

Both are slow to switch, even with Smart Previews enabled. 

Adobe Administrator

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8.2K Messages

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118.2K Points

In Preferences is GPU enabled or disabled?
 

Adobe Photography Products

Quality Engineering - Customer Advocacy

161 Messages

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3.4K Points

Enabled. I've tried disabled but it makes little difference. Having GPU enabled is faster though, marginally. 

It's not always 3 seconds, but most times it is. Sometimes it's one second. Sometimes it's 4 or 5 seconds. 

Adobe Administrator

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8.2K Messages

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118.2K Points

I will be at my Windows 10 system tomorrow (with a 3.5k Monitor) and will try to replicate. I only have GTX 970 available but it should be a reasonable comparison.  I will let you know how I fare.
 

Adobe Photography Products

Quality Engineering - Customer Advocacy

Adobe Administrator

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8.2K Messages

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118.2K Points

Update:

I ran some tests on my Win 10 system as promised and, with GPU enabled, was not able to see the same types of image walking times.  Either in Loupe or Develop, with the film strip active, I was seeing consistent times well under a second. 

One thing I've done on my system was to follow the instructions here for configuring the nVidia drivers. https://www.winhelp.info/boost-lightroom-performance-on-systems-with-nvidia-graphics-chip.html

Might be worth a shot?

 

Adobe Photography Products

Quality Engineering - Customer Advocacy

161 Messages

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3.4K Points

Hi Rikk,

I've already enabled the high performance mode on the graphics card, so I don't think that's it. 

Subsequently I tried re-overclocking my system to which I achieved a (mostly) stable 4.38GHZ (from a 4.2GHZ max OC) from the processor and a ram overclock too (1333 ----> 1903). I've noticed speed improvements in LR right away which makes me believe that the slowdowns are coming from a caching issue between the CPU and RAM. Could I be on to something? I'm no engineer, but maybe the ram is playing a more important role in LR performance than I originally thought.

Thoughts?

Adobe Administrator

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8.2K Messages

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118.2K Points

Interesting notion but I am the wrong guy to ask here... I tend to drive the speed limit on the highways and my processor clock speeds. 
 

Adobe Photography Products

Quality Engineering - Customer Advocacy