Yes, modern CMS platforms like WordPress, Drupal, and custom CMS solutions can handle high traffic and large-scale websites. With proper scaling techniques (e.g., caching, Content Delivery Networks, database optimization), CMS-based websites can manage millions of users monthly. Cloudflare reports that implementing these optimizations can reduce page load times by up to 50%, improving user experience and site performance. Our development process includes these practices to ensure scalability for growing businesses.