P: Slow UI when using Mac and Custom Display Profile

Thx alot i will try and report

Possibly the display profile as some have reported. If you load a simple sRGB profile instead, any better?

Hello I am working with the MACpRo 2013 and Mojave. Since I upgraded to Lightroom Classic, Lightroom has been running extremely slowly. Is this also due to my Spyder profile?
Uwe (germany)

Same issue here on my Imac 2017.

Processor 4.2 ghz

Memory 16gb

Graphics Radeon Pro 580 5gb.

Far too slow to use

What does this have to do with the original post? Would be best to start a new thread or find a Windows or overall performance tip thread.

Performance tip, I started with a similar setup on a Windows Xeon workstation except I have only one 3.6/4.0 Xeon with a Quadro 5GB P2200 video card.  

Began with Lightroom components split across 3 SSDs. With the images in the GoogleDrive folder. Was seeing a 1-2 second delay with every drag of a develop slider. 

Moved the images to a separate folder and periodically sync them to the Google Drive folder. Huge improvement because every image edit results in a write to the XMP file and the catalog whereby Google software locks the files until they are successfully uploaded. 

Then I put a Samsung 2TB SSD on a PCIe adapter and moved all Lightroom components to that drive. Nice but modest improvement. Then using Samsung Magician, set that drive to RAPID mode choosing it to accelerate both overall system performance and to manage TRIM. Very noticeable performance improvement though unfortunately I didn't do any measurements. 

Through all this, the Lightroom software components were left on the NVMe system drive. 

Glad to know I'm not the only one - took me some time to find the right thread.

cMP 5.1 running on Mojave 10.14.6

2 x 3.46GHz 6-core Xeon

64GB 1333MHz DDR3 RAM

Radeon RX 580 8GB

Lightroom catalogs are on NVMe in slot 2, however,

scrolling through library module has been an excruciating experience.

Should have reverted to 9.4 right away but having worked already on buggy v10 catalog, no turning back on current year's catalog...

At least Adobe is aware of the situation...

It sounds like you opened the incorrect catalog.  You need to search your computer for files ending in .LRCAT and review the recent files until you find your working catalog. 

@Rikk Hi Rick, we are having the same problem as everyone else but I didn’t want to add our details as we are using a 2019 Mac but with only 8GB RAM and I knew everyone would say it wasn’t enough.  However, before the update it was working perfectly.  The point is, I did as you suggested and reverted back to v.9.4 but somehow I have lost all the images!!  What did I do wrong??  Any ideas would be greatly appreciated.  Thank you.

@oleglukyanov  

Zero issues on my 2019 MacBook Pro with 32gigs, but I'm using an external NEC SpectraView where the LUTs are all in the panel and the OS is using a simple matrix profile. It's a display profile issue indeed.