Django Performance Improvements Part 3 focuses on frontend optimizations to improve the speed of Django applications. To measure performance, Google Page Insights is used to benchmark website speed, providing insights into metrics such as First Contentful Paint, Time to Interactive, and Speed Index. Minification compresses static files like CSS and JavaScript by removing unnecessary space, comments, and long variable names, reducing page load times. Django Compressor is used to minify CSS and JavaScript files in templates. Image optimization involves making images optimal size and dimensions without affecting quality, using the Pillow library. Caching improves performance by serving cached files from a cache, with LocMemCache being the default caching backend. Views caching and template caching can also improve page speeds. Serving static files through Content Delivery Networks (CDNs) like Akamai, Amazon CloudFront, or Google Cloud CDN increases page load speed. Sentry's code-level application performance monitoring allows spotting slow-performing HTTP operations and time taken by every page transaction.