LR Classic 7.3 super slow

I have the same problem and I'm a Win 10 user. I have two Classic CC versions installed. 7.0.1 and one 7.3.1. You can't simply work with a panorama with 7.3.1. at all. It takes forever to edit. 7.0.1 is slow as well but comparatively it is workable.

Lightroom updates are getting worse and worse since cloud based editing came into game. Is it just me being too suspicious or Adobe don't pay attention to Classic users anymore and intentionally try to direct customers to Lightroom CC?

I'm having massive issues on my iMac with LR.  I've just had the logic board replaced as that was the only thing they could think could be wrong but now I'm thinking it's software.  I also took a video.  Check it out.  I'm so annoyed.  I can't work like this.  It's hopeless. 

Mac issues 3 - YouTube

Running Lightroom Classic CC version 7.3..

I recently upgraded my PC to an 8 Core @ 4.2 GHZ with 32GB of ram and PCie SSD drives where my catalog and images reside.  The cache drive (C:) is also a SSD drive.  I thought for sure this would help with Lightroom performance.  It has slightly but the app is still sluggish given the hardware I am running on.  I am here today because Lightroom is more more sluggish than normal today.  The crop tool is giving me fits.  It is has herky jerky response and then all of a sudden it does its own thing setting the crop to a twisted small portion of the screen. 

Yes I have found and tried all suggestions to improve performance.  Nothing has worked for me.

CPU check shows CPU 1% or less so I am really scratching my head why I am even worse performance today then the typical sluggish performance.

I really wish Adobe would learn how to write software that performs key functionality flawlessly with lighting fast performance.  Alas I am thinking this is not going to happen as Adobe has had performance issues with Lightroom for years now.

I looked at Lightroom alternatives before upgrading my PC.  I will probably look at that again as I am really fed up with Lightroom sluggishness and Adobe's lack of effort in addressing it. I will jump to something else as soon as I found something else that performs well and gives me the key functionality I use in Lightroom which is just basic editing and organizing.

Shit app! Useless, shit

I ended up on this page because a slide show I was creating was taking forever.

It finally finished in about 8 hours.

Just for giggles I created the same slide show with Windows Movie Maker.

It took 40 minutes.

Just sayin....there is apparently something pretty smelly going on with Lightroom here.

Hi! i've an update to my latest post. I found out that the slow down issue of lightroom was related to a specific catalog. In fact, going back to a catalog with many more raw photos created long ago, everything runs normally. Therefore, in my case there must be something wrong with the database, corrupted somehow. Hope this will be useful to someone.

Same issue guys. Windows 7 with Lightroom CC 2018 (ver 7.0). Since a couple of day it has become totaly unusable. Sometimes CPU runs at 100% with no reason. Nothing change with GPU acceleration ON or OFF. No upgrade done, the same version installed months ago, suddenly runs like turtle speed. Very disappointed, And above all, no solution on the horizon!

P.S. The active catalog counts 6 raws. Not 60 nor 600, but only 6 CR2 files.

How any process can clock up 212% CPU utilisation is beyond understanding. Most reproducible when using the brush and any develop mode. In a way, I'm glad that it's not my installation that's the problem. A major pain in the Adobe.

I am experiencing the same thing. In addition, exporting images is taking so much time it is costing me money and business. I have followed every suggestion and have no increase in usability. After reading user responses, I'll be rolling back to a prior version. This is infuriating.

By disabling the use of graphics processor my 7.3.1 @ 2,8ghz 2017 mbp became usable. Slow, but usable. With that checkmark enabled, any masking is hilarious pain.