I've never seen a hot reload that worked fast enough to not be annoying.

React does it all quickly when all it's re processing is css but anything js related and it seems not to be able to treeshake down to bare minimum updates.

We're talking 750ms to 1.5s, and I admit it's still a marvel compared to things I used to have to deal with, but it's still enough to feel cludgy.

Flutter is another example of this. It's not _slow_ but if I'm sitting there waiting for even a bit I'm less likely to use the feature as an incremental tool rather than batch a bunch of things before looking or tabbing over.