Lightroom classic extremely slow on new powerful PC

Question

Hi all,

Hoping someone can help me. I have an Adobe plan with Lightroom & Photoshop included. Both have worked fine for years, however I now have a new PC (much more powerful than my last) & whilst Photoshop still works, Lightroom Classic is being very slow to launch (stuck ages on "reading preferences" on the splash screen, then any slider I click on in the development module is taking 2-3 minutes to ungrey itself out.

Importing images is lightning quick, as is rendering 1:1 previews. I've increased my cache & tweaked the GPU accelerator - no difference on either change.

I've had to revert back to an old copy of LR5 which doesn't support the raw files I'm currently creating, meaning a very manual workflow including a raw to dng converter.

A family member who's very techy worked with me for 2 hours on the weekend looking for solutions & doing checks - we cannot find anything.

Can anyone suggest anything or can Adobe advise if this is a known issue?

I'm using Win11

Local disk is 15% used with 781gb free

CPU is Intel(R) UHD Graphics 770

Graphics card is NVDIA GeForce RTX 5070 Ti

RAM 64GB

I am desperate to come away from the LR5 solution as it lacks so much Vs the latest classic version.

jasonw2420467 · Accepted Answer

Well that was some scary evening. I've ended up reinstalling windows 11, but guess what, the latest version of LR Classic is now lightning pace to load up & to develop any image - maybe it was something the people I brought it from put on or how it was setup but hey ho.

Guys - thank you for helping me over the last 24 hours, although I've no idea what's sorted it, I'm just over the moon I can get back to my old workflow but on my new setup. Btw, I had a new hdmi cable today & I think I'd inadverntly put in the wrong port, I don't think that was the source of the problem but it didn't help me earlier that's for sure

GoldingD · Answer

CPU is Intel(R) UHD Graphics 770Actually that is the integrated video controll within your CPU. Graphics card is NVDIA GeForce RTX 5070 TiAnd from your GPU, I assume this is a desktop computer or perhaps a workstation. As such, the integrated video controller probably has no influence into your LrC. Had this been a laptop, perhaps a conflict could occur, and perhaps deactivating the integrated video controller driver would help, but that is rare.__________________________________________________ Can you post a screenshot of LrC /Preferences/Performance/Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut out as that is just so much dead space to us non-Techs and it takes up vast amounts of scroll space making the reply less readable and less likely that others will bother with your post. Also large amounts of text in a post also render the Translate function inoperable.

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