The only stutter visible is during page navigation. Initially I even thought the right one would be RN. This is a solved problem in RN itself, with the default

The only stutter visible is during page navigation. Initially I even thought the right one would be RN. This is a solved problem in RN itself, with the default animation libraries already doing most of their work off the main JS thread. But it is extremely easy to overload React when all the extra rendering and business logic is put in, and it starts eating away the performance. The new Fabric architecture is supposed to reduce the native-to-js bridge cost significantly and might make performance on par with native - yet to be seen.