Performance Optimization Techniques for ReactJS

React is one of the popular web frameworks that has gained importance over other frameworks such as Angular, Vue, etc.. This is because of its implementation of Virtual DOM, whose primary objective is to enhance the overall performance of the application. However, there are certain things that one has to keep in mind before designing the applications. Failing to anticipate the problems that may occur component hierarchy will lead to performance degradation. Some of the commonly faced problems are component re-rendering, application lag due to background computations being run, lag due to processing large data sets in a single stretch, etc. This paper will describe some of the practical ways of overcoming such problems within the application, thus enhancing the performance of the ReactJS App in a production environment. The paper will also describe a time-efficient search algorithm that can be used for searching objects in a large data set.