For modern mobile app developers, React Native is the most promising and viable framework took for developing cross-platform applications. Ever since the framework launched it never faded from the limelight and surpasses all other frameworks of mobile app development.
However since React Native is a new app development framework, developers facing difficulties in improving its performance under certain scenarios. When an application requires more tabs, parallel processing, more controls, animations, navigations, and the inclusion of 3rd party libraries the framework becomes slow. However, the framework is on the verge of evolving according to the rising demands of developers, thanks to the continuous efforts of the React Native community people.