A widget costs ~1 ms on the L2, so Nodes with 48 rows held the screen for
~600 ms and a full contact list for over a second. fillStart() builds the
first screenful at once and fillTick() adds the rest ~25 ms a pass.
- Nodes: 6 rows first; the 2 s refresh rewrites built rows in place
- New message: contacts filled the same way
- Settings: a group at a time (all at once when coming back scrolled)
- Nodes 671 -> ~200 ms, Settings 376 -> ~190 ms longest UI stall
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
JakubandClaude Opus 5.5
34f739c45b