How can including a file of 130 kilobytes on every page impact the performance of a website, especially with a high daily visitor count?

Including a file of 130 kilobytes on every page can significantly impact the performance of a website, especially with a high daily visitor count, as it can increase the load time and consume more server resources. To solve this issue, one solution is to only include the file when necessary, such as on specific pages where it is needed, rather than on every page.

<?php
if ($page == 'specific_page') {
    include('file_to_include.php');
}
?>