In the context of a social networking website, what considerations should be taken into account when including a 130 kilobyte PHP file on every page for potential scalability and performance issues?

Including a 130 kilobyte PHP file on every page of a social networking website can lead to scalability and performance issues, as it can slow down the loading time of the website and consume a significant amount of server resources. To address this, the PHP file should be optimized by removing any unnecessary code, reducing the file size, and caching the file to improve loading times.

// Optimize the PHP file by removing unnecessary code and reducing file size
// Cache the optimized PHP file to improve loading times