P: As of Photoshop (v24.4.1) the curves adjustment layer is very laggy and unresponsive!!

I am here to also say that it is still not resolved. I'm frustrated using my Huion tablet. I have to switch to my mouse to use curves, levels etc. Helps only turing off Windows Ink. Than it works perfect. But I can't use my tablet properly cause one of the main advantages over mouse is possibility to work with pressure... 

Still unresolved... We're in 2025.

Version 25.9 still lag spikes on the Curves in ACR, good thing its not my instrument of choice otherwise i would probably switch to another program.

At this point this is so ridiculous, that we would happily be paying monthly fee for keeping our proprietary Photoshop CS6 alive. Adobe focuses on AI, while basic tools don't work as they should. We, retouchers can't do the work, our team have mice next to their tablets so they can adjust curves. And we keep paying monthly fee.

Adobe, get your act together!

I've actually got the bug in version 22.2.0

For any adobe employees who might happen to see this, changing to the 'latest version' is not a viable solution for many professionals (i'm a concept artist, using it to digitally paint). The newest 25.x.x build of photoshop is unusable for me. The software interfaces wierdly with wacom + modifier key inputs for drag-resizing brushes etc, meaning the whole process of painting is jerky and completely useless.

Because your team misses so many gamebreaking bugs for heavy professional users, the most straightforward solution i can come up with is allowing access to a far larger list of older versions. Currently not a single available version works correctly or as smoothly as they used to. If my current version gets uninstalled from my machine at work then doing my job is going to become unbelievably painful.

I try not to think about that inevitability too much, for the sake of my mental health.

Tested Photoshop v25.4 now curve speed is good, however bug i posted above is still there.

It is far from fixed
It become little less laggy at best, but still is bearly usable, speed in ACR is still lagging a lot compared to speed of curves adjustment layer in Photoshop itself, there speed is okay.

Found nasty bug with curves in 25.3.1
1. in ACR curves when you drag curve point and move mouse across left or right edge of curves box nothing happens, but when you drag curve point and move mouse across top or bottom edge of curve box curve point disappears! and if you let go mouse when its outside the box curve point will just get deleted.

2. Same bug in Photoshop curves adjustment layer when dragging curve point and mouse go across the curve box (any edge) curve point disappears.

    

Version 25.3.1 has not resolved the adjustment layer problems.  From the layers palette, I cannot get the adjustment layer menu to drop down.  I have to go to the layers menu at the top of the screen.  Also, in curves, I can't access the R-B-G options.  In the Hue and Saturation adjustment layer, the various color options don't work, only for all the colors.  Please fix this!!

Peggy

wanted to follow up on the slow Curves issue. Despite the recent update 25.3.1 on MAC, the problem of significant lag when adjusting layer masks, which I frequently do in my editing process, remains unresolved.

For a clearer understanding, I'm sharing two videos here demonstrating the issue with the most current version of Photoshop with panels On and OFF.

To troubleshoot this further, I discovered that the Curves function without lag when I hide all panels using the TAB key.

This led me to test each panel separately to identify if a specific one was causing the lag. It appears that the Info panel is the root of the problem. Adjusting various modes and status information settings within this panel did not resolve the lag.

However, collapsing the panel did improve the situation.

I wanted to share these findings with the community and the support team, hoping it might assist in narrowing down and addressing the issue more effectively.

Thanks for your attention to this matter.

Responding to keep this thread going. I'm still experiencing this problem in the lastest update (25.3.1). It's absolutely unusable ! Curves is part of my normal workflow and trying to work around this is extremely infuriating. As many of said before, I cannot believe this hasn't been hotfixed by now.