Selective Color & Adjustment Layers Extremely Slow on Mac

[abekislevitz]

Hi all, I've been editing photos with Photoshop & adjustment layers for 10+ years and with every new version of photoshop, it feels like performance using adjusment layers slows down more and more. I'm at a loss for what to do at this point. I have a photo that is 2000px x 1500px (small) with 0 layers outside of the image and 1 selective color adjustment layer. With each small change of the slider it takes about 1 second to update the on-screen change. No chance this is a computer issue unless Adobe hates high-end apple hardware. I can get it to smoothly change colors real-time if I zoom the photo out to 16.7% or in at 800% in the canvas view. At 100% is when it's slowest, with each step either out or in it will speed up.

Running iMac Pro 3ghz 10 core

64GB 2666 DDR4

2TB SSD with Catalina

I know for a fact this ran better 7 years ago on my macbook pro with larger images and 20+ layers. Anyone else experiencing these symptoms? Any iMac Pro users out there?

[lambiloon]

Hi this may be due to temporary files in your pc try to purge all cache memory hope it helps you...regards

[Derek Cross]

Have you tried resetting your Photoshop preferences?

[abekislevitz]

Yes, no change.

[MattiaDL]

I'm having the same issue, in my case I think it's because I don't import the photos on my macbook, I'm editing directly on my external hard disk. Maybe this is the issue, I have to try and edit directly on my mac.