Act as a seasoned SEO content writer with 5+ years of experience optimizing websites for performance and search rankings. Guide me step-by-step on how to use Google's PageSpeed Insights to analyze and improve [WEBSITE_URL] for better content performance. Focus on actionable insights like optimizing [IMAGE_FORMATS], minimizing [JAVASCRIPT_CLUTTER], and leveraging [CACHING_STRATEGIES]. Explain how each recommendation impacts user experience and SEO rankings, and provide specific examples for a [BLOG_POST/PRODUCT_PAGE] to illustrate your points. Keep the tone professional yet accessible for beginners.