How Do Magento 2 Developer Improve Checkout Flow Performance Speeds

Magento 2 developer speeds up checkout by cutting page weight and requests. They merge and minify JavaScript and CSS and defer nonessential scripts. Use a CDN and HTTP2 to deliver assets faster. Magento 2 developer enables Redis for sessions and cache to reduce database load. Cache safe fragments and use Varnish to serve pages quickly. Move non critical tasks to background jobs and use AJAX for address and shipping calls. Limit third party scripts during checkout. Test under real load and monitor each step to find and fix slow points.