Yeah, the Photocraft (or whatever that photoshop clone name is, naming everything *craft just blends the names together in my head) program, for example, is way too slow in WASM to be usable, I think it ran on a single thread without using Worker and basic optimization features like that.
Just because you can throw tens of thousands of dollars at frontier LLMs doesn't mean what they write would be good, you still need to have some oversight for their work.
expecting it to work well in wasm seems a bit too high of a bar.
It works relatively well in native mode as a standalone app (tho not being an actual photoshop expert, i dont know if the features compete properly, i simply hear that those trying it are impressed).
The excel clone works well enough for me to do taxes on, even tho the look and feel is a bit janky. I would stick with google sheets, but it's a usable replacement if i didnt already have sheets.