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Keep in mind that React is very single threaded (as is nearly everything in javascript). These phones might have 8 cores; but they tend to have the same single thread performance as 10+ year old iPhones.


That assumes that the bottleneck is JS parsing/execution. The browser itself is not single-threaded and can load/parse resources in parallel.

And I don't buy that most websites would have react as the bottleneck, over the million other js libs, ads and tracking.


No one is asking you to buy it, there is tons of empirical data you can analyze for yourself.




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