Performance

Topic	Recommendation
Mounting	Mount once per view and unmount() on teardown. Never remount to show new values; use form.setValues() or restoreSnapshot().
Schemas	Keep schema, layout, and transport objects stable in framework components so effects do not remount the form.
Subscriptions	Use subscribeSelector with a narrow selector for previews and badges instead of subscribe to the whole state.
Reads	form.getField(id).state is cheaper to reason about than diffing form.state yourself.
Asynchronous validation	Set asyncValidationDebounceMs on fields whose validators call a service.
Series	Bound maxPoints for large inputs; every row is validated and aggregated on change.
Reports	Keep payloads to what the report shows; use report fetches with reportFetchMode: "lazy" for heavy, optional content.
Custom renderers	Update existing elements on each snapshot instead of recreating them.

Snapshots are frozen and keep their identity until something changes, so equality checks are cheap and safe for framework stores.