Same problem here. Still present in PS 22.4 Hello, I'm 35, have been using Photoshop since version 5.0 in 1998. Using the software on an everyday basis as a working tool for my company. I had a computer with i7 2.60 Ghz •32GB Ram •Nvidia Quadro K2200M •Win7Pro64 and here is how Curved were handled in PS 2015.5.2 <iframe src="https://www.youtube.com/embed/xYSd4Fr_gUQ" style="max-width: 100%; max-height: 100%;" width="640px"></iframe> Now I have a computer with AMD Ryzen 9 5900X 12 Core 3.70 Ghz • 64GB Ram•Nvidia RTX 3700•Win10Pro64 and here is how "Curves" are handled by (crappy) PS CC 2021 (22.3.1) <iframe src="https://www.youtube.com/embed/B1u8r-F7GX4" style="max-width: 100%; max-height: 100%;" width="640px"></iframe> Needless to say that I know how to set the preferences in PS about usage of RAM, history, Open CL etc etc. Everything is well set. Do you have some explanation or, even better, a solution Adobe ?? Every sliding-based tool is handling the same way. Of course my Win10 installation is all new and fresh and up-to-date with latest drivers. ... View more

https://community.adobe.com/t5/photoshop/photoshop-22-3-1-laggy-curves-tool/m-p/11979325#M532592 ... View more