I need a fast, surgical update to my existing website code so that the site feels snappier and the core features work flawlessly on all devices. Key focus • Strengthen overall responsiveness—pages should react instantly to clicks, taps, and scrolls without lag. • Refine navigation in particular; menus must open smoothly, highlight the current page correctly, and never break on smaller screens. • Tidy up any related functions so the experience remains consistent from desktop to mobile. Scope of work 1. Review the current codebase and pinpoint the blocks slowing down or breaking navigation. 2. Rewrite or streamline only the necessary sections—keep the rest intact to avoid bloat. 3. Test across modern browsers (Chrome, Firefox, Edge, Safari) and common mobile viewports. 4. Deliver the updated files plus a concise change log so I can track what was modified. This is a focused, low-budget task, so I’m looking for clean, efficient fixes rather than a complete rebuild. If you can turn this around quickly and prove the results, let’s get started.