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by pjmlp 1747 days ago
Definitely, because first JSON was just a possible format, secondly, whatever format is used, it is serialisation format for a native language, using the native APIs of the platform.

There is no interpretation going on.

The abstraction layer for react native has JavaScript engine in the middle, plus a marshaling layer to go through OS APIs, and on Android is double slow, because NDK only has game related APIs, anything else requires a second marshaling call to go through JNI.