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Open chats with their latest page of messages, older ones on scroll - #354
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niclas-j
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Nov 1, 2026
niclas-j
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- The desktop loaded every message of a chat on open and on every refetch; it now asks for the latest 40 and loads the page before when you scroll near the top (scroll position kept, already-loaded pages survive refetches, search links load until the message is there).
- 56-message chat: open 1.7 s → 0.42 s, JS heap 364 MB → 140 MB, core response 25.9 MB → 0.16 MB.
The desktop fetched every message of a chat on open and on each refetch. It now asks for the latest page; scrolling near the top loads the page before (scroll position kept by the height that came in), a refetch keeps the older pages already loaded in front of the new window, and a search link to an older message loads pages until it is there. Measured in a 56-message chat: open 1.7 s -> 0.42 s, JS heap 364 MB -> 140 MB, DOM nodes halved; the core serves 0.16 MB instead of 25.9 MB for it.
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