Review your module's code to ensure it follows best practices for performance. Minimize database queries, optimize loops, and eliminate any unnecessary code.
Implement caching mechanisms to reduce the load on your server. This can include caching database queries, template files, and any other frequently accessed data.
To better handle the traffic, optimize your server configuration settings, including those for PHP, MySQL, and web servers (such Apache or Nginx).
Deliver static content such as photos, CSS, and JavaScript files with the help of CDN. It minimizes server load and improves page load times for users all over the globe.
Make sure your module runs well in a variety of settings by thoroughly testing it and regularly reviewing your code for any possible performance issues.