Lightroom Classic CC seems slower than previous Lightroom version it replaced

I'm moving to CaptureOne. Just tested yesterday. OMG it's so fast while in LR it takes 10 minutes to take the brush, to swith images, to.... do anything.

i9 7960X

SSD 1To

Nvidia GTX 1070 8Go

64Go RAM

Pro photographer.

Bye LR and Hello C1. I will see.

Update.....Abobe Tech Support in India contacted me and they have been able to reproduce the issues Ive been experiencing and its now back with Product Engineering who are trying to work out a fix .

Basically tech support 2 level got same model macbook pro and again reloaded the test catalogue I had prepared for them some time back and 100% confirmed they could reproduce the slowdown. Basically bad  brush lagging and huge cpu overload as reported by OSX activity monitor( cpu usage went as high as 350% of resources when brush tool chosen ). As I mentioned earlier this was then forwarded to Product Engineering and Tech Support got confirmtion aslo the Engineering could reproduce exactly same issues as both tech support and I had. Thats now 3 seperate people able to reproduce severe slowdowns on a  Macbook Pro 15" mid 2015 model with below specs. Given there must be 100's of thousands of these Macbook Pro's produced and many currently being used by lightroom customers says to me Adobe have a very serious problem with this lightroom upgrade.

Adobe tech support also mentioned they were aware of the multitude of posts in this respect and that these issues are not restricted to a few isolated instances . What I find incredible is if they are so aware of these issues why they didnt provide feedback to customers earlier instead of waiting this long!....Surely product engineering would have tested for these  slowdown issues on various Apple models before releasing. The fact that unlike the many Windows equipment configs that Adobe would need to test on they have relatively few  to test re Apple  machines thus its pretty evident that someone must have been asleep at the wheel  in the Adobe Engineering testing dept to let this update get out in the state it was released in!

System is Windows 10 Pro 64-bit, i7 6700k cpu, 32gb ram and SSD drive. Using 7.01 version of LR CC.

I have just imported my first photos with this version of LR. What a shock. I imported a 200 jpgs (~7megs each) and it took a half and hour to import!!

I then imported 8 XT2 raw files (30 meg each) and it took 15 minutes.

This is absolutely unacceptable - no way to use LR in this condition. Anyone hear of a pending solution?

IMPORTANT:  If you want to do fast culling, select the option for using "embedded" preview - that is, the preview embedded the RAW.

Now suppose that you do that.   There is another option - which I suspect is checked by default - where Lightroom creates new previews in the background while you are doing other work.   That hogs CPU.

This might account for:

a. apparent slowdown, as well as ....

b. why some people experience the slowdown and others do not.

The performance is truly unacceptable. It only runs decently after a fresh boot of the program but quickly bogs down after taking a few actions. It doesn't even seem to matter what those actions are. Simply sifting through images in the Library will bog it down after some time and things become unusable. Multiple seconds to switch between images in the Library (worse in Develop module), with the viewing area turning black for multiple seconds frequently as well.

I've had problems with the program since last year. I forgot exactly when, but it was definitely terrible by summer. I even upgraded to a Ryzen 1700 @ 3.8 GHZ (8 cores, 16 threads), 32GB DDR4 3000 Mhz RAM, and a Radeon RX Vega 64 GPU on an SSD and it barely helped other than exporting times.

The only thing that seemed to change from CC 2015 to Lightroom Classic is that adjusting the sliders no longer cause "choppiness." Before, when I would adjust shadows or exposure after the program began to bog down, the changes would not happen in real time and the app would lock up until the changes were reflected, causing a very choppy experience. Now, adjusting the sliders no longer cause the app to lock up, but they still take the same amount of time (or perhaps even more) to reflect on the image.

It's just a terrible user experience overall. I like Lightroom's interface and capabilities, but it's non-stop frustration to use. I've decided to to give Capture One a try and see if I can't adjust to it. Hopefully Adobe gets their act together and finds a way to get Lightroom to perform at least as well as all of the other competitors out there.

These are the changes I have made, which have massively improved my overall workflow and image load speed:

1) Force OpenGL mode on my GFX card using the config.lua setting mentioned further up this thread

2) Put my catalog and preview files on a dedicated SSD

3) Increase the Camera Raw Cache to 100GB

4) Standard Preview Size to Auto (1920px) - the res of my main editing monitor

5) Preview Quality to High

All these made incremental improvements - however the biggest change was to exclude the following from my Anti Virus utility:

• Lightroom Catalog
• Lightroom Cache Folder
• Lightroom Previews Folder
• RAW files

This has given a massive performance improvement to the point where edits are near instant, and the develop pane performs as expected with near instant load speeds on images.

The only thing that doesn't change is the high cpu load - but it's still a good start.

Hope this helps a few of you,

James

I had the same problem, was driving me insane so slow, freezing up etc. I started a chat with adobe and he removed two possibly conflicting program files and changed a couple of preferences and it's now working faster than ever. Think everyone needs to start a chat and let them sort it out, was all fixed in 15 minutes. I'm using a imac 2017 5k 1tb fusion and Wacom cintiq hd27.

Changing modules seems fine enough but edits have gotten noticeably slower - and I mean any slider action takes 2 seconds to show. In previous versions I could work with my massive shoots (1500 images), without having to build the 1:1 Previews, now I definitely make that process part of my work flow too (which ultimately slows down my whole workflow because now I have to wait for those to be generated).

I'm on

I7-6700k @ 4.4ghz

32gb Ram

Geforce GTX 1060 3GB

Samsung SSD's and M.2's for days

There's no excuse honestly, Adobe. The only reason I'm still using Lightroom over Capture One is the fact that it seamlessly works with my Photoshop flow. Once that's figured out on my end, adios!

I've been having the same issues as most everyone else here and have read through all the various responses and ideas. One thing I tried - and which seems to be doing the trick - is purging my cache in LR Classic and then switching the cache location to another drive completely. I have no idea which bit worked but something has done something and my LR is back up to speed..

Very weird but happy (at the moment) while it lasts!

I'm finding it painfully slow, not so much in the editing, but when simply moving from one image to the next in Library or Develop. if I move form one image to another, then back, I get the dreaded beachball for 30 seconds each time. This is with no editing, just simply browsing through a collection in my Library, with both smart previews and 1:1 previews already rendered. How on earth can it be so painfully slow?