Why does photoshop run so slow.

I have a 4090 graphics card with 128gb of ram. I can run 3D scan processing. Render water simulation in Blender. The only program that stutters and takes forever to load up is photoshop. I used to run CS2 on a little laptop back20 years ago and it was flawless. There is seriously something wrong with photoshops priorities. I would like to suggest a new version of photoshop.. Classic. What I would do for Cs2 speeds.