Frontend performance has become a critical concern as apps got bigger and more complex.
Zero-bundle-size frameworks aim to send almost no JavaScript to the browser on initial load, resulting in lightning-fast loads and instant interactivity.
Hydration, which reactivates HTML with JS in the browser, has its downsides and can lead to performance issues.
New frameworks like Qwik, Marko, SolidJS, and Svelte are emerging as alternatives that prioritize resumability, edge computing, and fine-grained reactivity.