alt Hacker NewsFlutter re-generates the entire layout every tick and diffs it (immediate-mode), like a game engine. If your device isn't quite fast enough it'll lag, yep. RN is retained mode (but written in immediate-mode style and the diffing only happens when it has to).
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realusername • today at 12:37 AM
I'd say it's the opposite, on crappy devices, Flutter feels faster than native, not sure how but that's the end result. I've been testing on an old Samsung J3 and it's definitely better than native.
That's also maybe why it's so popular in India.
Interesting, I didn’t know that it was immediate mode. According to the article [1] though, it now uses rendering engine with Retained Mode due to performance issues.
[1] https://medium.com/@0s.and.1s/flutter-part-iv-skia-vs-impell...