P: Slow Curves Adjustment layer with zoom tool selected

Thank you for the sample file. 

I have tried to reproduce initailly and nothing yet, however, I will keep at it.

Hi,  i tried to reproduce it with the same file I had troubles with. Now it doesn't show up so clearly. I only could reproduce it once, after I confirmed the adjustment of the mask but then I wanted to make further adjustments, then I could not move the corner point at all. But in general the behaviour is not constant. Only sometimes I can't barely move any point of the curve. Here is alink with the File: https://web.tresorit.com/l/9SFMi#QKoH-Tnjg7JjWJcxnxJcrA

There are two Adjustment Layers on top. Try to adjust the mask content with curves.

What is are the dimensions, ppi and bit depth of the Smart Object you are applying the Curves to? 
I am trying to re-create a simialr file on my end. 

If you work on a rasterized or original file (no smart object) do Curves styill behave slowly? 

Hi,

I'm experiencing really slow Curves already since PS 21.x.x and 22.x.x and it gets gradually worse.  I'm now on 23.0.1.

I'm experiencing super slow curves especially while adjusting masks. I just wanted to write a new issue topic but found this one. The size of the image almost doesn't matter. As long as there are several layers the curves start to be super slow and like I said adjusting masks is almost not possible. Turning the Ruler Off doesn't help. Turning off 'Enable Native Canvas Rulers" kind of helped a little.

Mac Pro 2019

3.3 GHz 12-Core Intel Xeon W

192 GB Ram

AMD Radeon Pro W5700X 16 GB

Please Adobe Fix this, it is almost not possible to use curves anymore.

Thanks!

Nope please uncheck that "Solution. Not the correct solution.

As I replied in https://community.adobe.com/t5/photoshop-ecosystem-discussions/adjustment-sliders-unresponsive-in-latest-photoshop-update-21-1-3/m-p/11152341, it does not solve the problem. As soon you zoom in/out or touch the canvas with the mouse, it is super jerky again. Currently I am working on a file from a D850 (lossless compressed NEF) loaded as smart object from ACR into Ps. It is horrible to work with. Totally no go.

Looks like 17,967 x 5059 px 300PPI 16bits from the video

I would also like to be more specific as to what size is the file? 

Dimension of this file?
Resolution of file (300ppi,600ppi...) ?

8/16/32 bit file? 

Also

Please provide information in Photoshop, select Help > System Info.

1. In the System Info dialog, click Copy.
2. Attach or copy the info here to this thread.

@Roland_Rick It may help engieners if we could see your Photoshop System Info. Launch Photoshop, and select Help >System Info...and copy/paste the text in a reply.

Thanks for letting us know @Roland_Rick.

Will mark @J453's suggestion as correct for anybody else that might encounter the problem

Have a great day

mj

I suspect it's Enable Native Canvas Rulers based on your description. Can you doublecheck that checking that one makes things jerky again?