Performance is not a purely technical concern. Every extra second of load time increases the chance a visitor leaves before they ever see your offer.
Search engines also reward fast, stable pages, which means performance directly affects how easily new customers can find you.
The good news: most performance problems are fixable with the right foundations — optimised images, sensible code splitting and a modern hosting setup.
Treat performance as an ongoing metric, not a one-time fix, and revisit it whenever you add new features.