These numbers are actually the server numbers set on your site from the hosting, it will allow the space on your server to your site and also the time on your server to your site to run the query and perform successfully. The higher the number will be the better the performance.
Maximum execution time (max_execution_time) is a time limit on how long a PHP script can run.
The Max Input Var value represents how many variables for a single function your server can use to avoid overloads. Depending on your script or website, you may need to change this value.
