SEO Free basic tool & Speed Optimisation Needed ,issue to be sort out of our website as per attachment

We are looking technical person from tamilnadu only. My website is dragging its feet and I can feel it in traffic and conversions. I need a thorough technical sweep that tackles two priorities right away: faster page-load times and smarter image optimisation... (Budget: ₹600 - ₹1500 INR, Jobs: Conversion Rate Optimization, Google PageSpeed Insights, GTmetrix, Link Building, Page Speed Optimization, PHP, SEO, Website Audit, Website Optimization, WordPress)