How to Optimize Apache Web Server for High Traffic Websites

I am currently running a high traffic website on my cPanel server with Apache web server. I have noticed that the website is starting to experience slow response times and occasional downtime during peak traffic periods. I am looking for advice and guidance on how to optimize my Apache web server to handle high traffic and improve website performance. Are there any recommended configurations for Apache settings, such as MaxClients, KeepAlive, and Timeout? In addition, what are some best practices for optimizing website content, such as minimizing image and file sizes, enabling browser caching, and using a content delivery network (CDN)? I am using cPanel with WHM access and Apache version 2.4. Any advice or guidance on optimizing Apache web server for high traffic websites would be greatly appreciated