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What bundle size range can we expect?

Many mobile users are on throttled connections, due to low data caps, and research has shown users stop loading a site usually after 1 second of loading time.

That means with a throttled connection, less than 8KiB overall CSS, JS and HTML can be transmitted, and with a 1Mbps connection, 128KiB can be transmitted.

How many minutes will users have to wait with React Fiber? And can it be improved in any way to get below a few seconds? Or will I have to continue to write vanilla JS to get responsive apps?



Answering @vote-for-pedro: Yes, currently, a working React installation takes around 6-10 seconds to load on dialup or throttled internet, without caching. Which is pretty good.

But React Fiber is doing a lot more than legacy react, so it'd be interesting to know how much larger it will get - and if it would still be performant enough.




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