My niche wellness site has been live for about a year and already attracts a steady stream of visitors from around the world. The core content is in place, but it now needs a true polish—and, most importantly, a fully-functional merchandise store—to turn it into the one-stop hub I first envisioned. Here is what I need: • Merchandise store – end-to-end setup that lets visitors browse products, add to cart, and check out smoothly with Stripe / PayPal. I am flexible on platform (WooCommerce, Shopify buy-button integration, or a lightweight custom solution) as long as it blends seamlessly with the current tech stack and design. • Navigation overhaul – clearer menu structure and internal linking so users can reach any key page within two clicks. • Performance tuning – faster page loads across desktop and mobile. Please bring best-practice front-end optimisation: image compression, code minification, caching, lazy loading, CDN suggestions, whatever is needed. • Interface refinements – consistent typography, colour palette, and layout adjustments that make the site feel intuitive and genuinely professional while preserving the existing branding. Acceptance criteria 1. Store live in production, processing real test orders without errors. 2. Average page load under 2 seconds on Google PageSpeed Insights for top-traffic pages. 3. Navigation tested by a small external user group with documented, resolved feedback. 4. All edits delivered through a staging environment and merged cleanly to the live site. I will supply full site access, brand assets, product images, and copy. Please let me know your preferred stack, a rough timeline for each milestone, and examples of comparable sites you have upgraded.