Act as a senior web performance optimization (WPO) and user experience (UX) consultant. Develop a comprehensive, actionable strategy to significantly improve the loading speed and perceived performance of [Website URL or App Name] in order to directly boost user retention and reduce bounce rates.

The strategy must be tailored for a [Industry/Website Type - e.g., E-commerce, Media Blog, SaaS Platform] whose primary user demographic is [Primary User Demographic - e.g., mobile users in North America, tech-savvy professionals]. The analysis should specifically address the unique challenges of [Specific Challenges - e.g., large image assets, third-party script bloat, complex database queries].

Provide a phased plan that includes:

Diagnostic Analysis: Recommend specific tools (e.g., Lighthouse, WebPageTest, GTmetrix) and key metrics (LCP, FID, CLS, TTI) to identify the most critical bottlenecks. Categorize issues by severity (Critical, High, Medium) and their direct impact on user experience.

Technical Action Plan: Provide detailed, technical recommendations for front-end (e.g., lazy loading, code splitting, asset optimization, CDN configuration) and back-end (e.g., caching strategies, database optimization, server response times) improvements.

Measurement & Monitoring: Outline a process for establishing performance budgets and continuous monitoring to prevent regression. Define clear, quantifiable Key Performance Indicators (KPIs) to measure the success of the optimizations against retention goals.

Prioritization Framework: Prioritize the recommendations based on the expected effort (development hours) versus the potential impact on load time and user retention. Create a clear roadmap for implementation (Quick Wins, Medium-term, Long-term).

Justify each recommendation by explicitly linking the technical improvement to a positive user behavior outcome (e.g., 'Reducing LCP by 0.5s is correlated with a X% decrease in bounce rate for e-commerce sites').