I often found that there are issues observed post-implementation due to not following the best practices recommended by Adobe.
What Causes Performance Issues
- Thread contention — long-running requests such as slow searches, write-heavy background jobs, moving of whole branches of site content, etc.
- High CPU utilization.
- Expensive requests such as expensive searches or inefficient application code, components, etc.
- Lack of proper maintenance.
- Insufficient dispatcher caching.
- Lack of CDN.
- Lack of browser caching.
- Too many scripts loaded on-page and loaded at top of the page.
- CSS loaded throughout the page instead of in the HTML head.
- Insufficient server sizing or incorrect architecture.
- Unoptimized taxonomy and DAM assets.
Solution — Site Optimization Framework shows how to boost your website performance.