Application startup performance impacts a business's bottom line, especially in sites that focus on conversion. React is often a go-to choice for such sites to bring interactivity, but eager hydration often negatively affects startup performance. New frameworks such as Qwik focus on startup performance but would require a full rewrite. Qwik-React is a bridging technology that allows React components to be executed inside Qwik. The advantage is that each React component can become its own islands which can be lazily hydrated on click, mouseover or visibility. This approach allows you to improve your site performance without a costly rewrite.