HTML-First Web Performance: How Astro's Islands Architecture Cuts JavaScript Bloat

Most developers default to JavaScript-heavy frameworks for portfolios, sacrificing performance for familiarity. Astro reverses this assumption by treating web pages as documents first, making JavaScript optional and enabling island-based hydration—delivering faster loads without abandoning modern interactivity where it matters. This paradigm shift challenges the 'React for everything' mentality and demonstrates how selective component hydration reduces payload while maintaining rich user experiences.