Enhanced SaaS Website Development

I need a fresh, modern website for my SaaS (Software as a Service) product that outperforms our current one in both look and feel. The existing site will be shared once we connect, but the brief is straightforward: keep every piece of core content, yet rethink the structure, visuals, and user journey so the platform feels premium and loads fast on any device.

Key goals
• Visually compelling, conversion–focused pages built with clean, responsive code
• Intuitive navigation that makes signing up for the SaaS effortless
• Solid technical foundation: fast page speed, SEO-friendly markup, and airtight security
• Straightforward hand-off: source files, style guide, and clear deployment instructions

Please outline your preferred tech stack, any similar SaaS sites you have launched, and an estimated timeline for design, development, QA, and go-live.
REFerences
https://superreviewwidget.com/
https://elfsights.com/