Adobe has a dirty secret: Photoshop is a memory hog. Every layer, history state, and undo step lives in RAM.
: Multicore Intel processor with 64-bit support or Apple Silicon M1/M1 Pro/M1 Max processor. RAM : 16 GB or more. system requirements for adobe photoshop cc 2022
Photoshop uses your storage drive as a "Scratch Disk" when your system runs out of RAM. If you use an old mechanical Hard Disk Drive (HDD), your system will crawl during intensive tasks. Upgrading to a Solid State Drive (SSD)—specifically an NVMe SSD—ensures rapid file loading and smooth performance when scratch disks are utilized. Critical Considerations and Upgrades Adobe has a dirty secret: Photoshop is a memory hog
* Resize and adjust resolution. Printed image resolution. Set image size and resolution. Resample option in the Image Size dialog. Adobe Help Center photoshop 2022 - Adobe Community RAM : 16 GB or more
Complete Guide to Adobe Photoshop CC 2022 System Requirements