React Context Is a Dependency Injection Tool, Not a State Manager

Many React development teams misuse the built-in Context API as a general-purpose state management solution, which can severely degrade application performance. Because React re-renders every component consuming a context whenever its value changes, high-frequency updates — such as keystrokes — can trigger costly cascades across the entire component tree. An audit of an enterprise dashboard found that form input latency reached 250ms per keystroke due to this misuse; migrating to Zustand reduced that figure to just 12ms. Zustand and similar libraries use selector-based subscriptions, ensuring only the directly affected component re-renders on each state change. Experts recommend reserving Context for low-frequency global data like themes or authentication status, and using external stores for any state that updates rapidly.