Severe Lag, Program Errors, and PSD File Corruption in Adobe 26.9 (Also Occurs in 29.8)

I’m using Adobe version 26.9, but I’m experiencing severe lag and long loading times when working. Additionally, some PSD files display an error message saying “Could not open because of a program error”, causing the original files to become corrupted. While working on layers, I often get a warning that says “Could not complete your request because of a program error” and the operation fails. Even after downgrading to version 29.8, the same issue occurs. Other programs that can edit PSDs also refuse to open the files, showing an “Invalid file” message. Disabling the GPU does not help, and my scratch disk has more than 600 GB of free space. Memory usage is at 93%, and I’m using an NVIDIA GeForce GTX 1660 Ti. Please help — I can’t continue my design work under these conditions.