P: Slow Curves Adjustment layer with zoom tool selected

@Dramenon 

is there any progress on that? in April you wrote "we may have actually identified a potential area to investigate with regards to this issue. "

Please note that I signaled the issue in this other thread : https://community.adobe.com/t5/photoshop-ecosystem-discussions/photoshop-22-5-still-huge-lag-while-using-hue-saturation-sliders-on-windows-10/td-p/12369420

Hi Daniel 

I saw your video tested with Single layer image and I'm honestly disappointed that the development team set this up and tested this problem.

We've been using Photoshop for more than 20 years because it's the only tool that can create something from nothing through the numerous layers and mask blending options that only Photoshop can handle.

This is not a working environment for simple calibration of one or two pictures. In my case, there are more than 100 layers per PSD file on average, and masks are applied to each layer, and I am working on creating images through various blending options. File capacity is often as low as 200mb to 1.7G.

But I think there are a lot of problems in this situation where developers are testing to solve the problem, and there is no problem when they adjust the curve value to the image of a single layer.

If you need my PSD files just tell me your e-mail address

I think this is what I'm experiencing too (on pretty over-specced PCs and a reasonable spec Intel Mac). https://community.adobe.com/t5/photoshop-ecosystem-discussions/adjustment-layer-lag-in-photoshop-since-version-21-0-3-including-new-version-23-0/m-p/12513156#M597163 

I did kind of fix it - not as smooth as it was back before v21.03 but just about usable, by disabling native canvas. It is a bit of a nightmare though because my core workflow is big, many-layer files with many adjustment layers. There was some indication that the GPU code was rebuilt around this point (which disabling native canvas seeming to improve things also sort of point to). There's some videos on the thread above showing the difference between versions.

I do have wacom but have tested without (and without the software/drivers installed too). That causes some nasty issues with Windows Ink but that seems to be an unrelated bug that's largely alleviate by using the wintab stylus override.

Thank you for the information, we may have actually identified a potential area to investigate with regards to this issue. 

I agree with your hypothesis >  happens with probably all adjustement layers.

@Dramenonthis issue happens only on zoomed in image or zoomed out but very zoomed out, there is no problem with standard view (ctrl+0) or little zommed out

When I was trying to find the problem I found that it is not easy to reproduce the issue in PS itself without any loaded image, I mean when you open new document, paint something and then try to zoom in, it doesn't happen

I was also trying to copy exact layer stack from image to image and it wasn't so obvious, I mean sometimes the same layer stack caused slowdown sometimes not

However, when I use Lightroom and open my d750 RAW image in PS and then I start using my standard layers like color balance, selective color, curves, then paint on mask I always see this issue on just few layers

I assume image is stored differently when there is some content in it than just empty image with some simple painting on it, so it may be related to some memory issue, something is working slowly and then each adjustement is extremely slow, it's not related to curves, it happens with probably all adjustement layers

issue was instroduced in Photoshop 2021 (more than year ago), last working correctly version was Photoshop 2020 (21.x)

issue is related to GPU acceleration

I do not believe it has anything to do with Wacom or their drivers. In most cases it seems to happen when zoomed in on the document. We are looking at the issue.

I am running Wacom however, because this issue is for over a year and I was hard drive crash in the meantime I tested this issue on fresh Windows without Wacom installed and it was still there. Of course it was few months ago so it wasn't last version of PS.

How many people are running Wacoms? I wonder if there is a conflict between the Wacom driver and photoshop - is that something that could be looked at? I know there's been conflicts in the past.

yep, I'm preparing the File. Thanks!