To be fair, I think the kind of person who is going to use the vibecoded clone is your average "I need Photoshop for this one thing"[0] user who isn't working on 100MP images or multi-layer shenanigans or, really, any of the things you'd run into Photoshop's engine efficiencies with.

[0] The purported clones all have deficiencies in one area or another.