Before accessing cPanel, open your Internet browser (Chrome, Firefox, Edge, etc.). Then follow these steps:
Step 1: Log into your cPanel (Learn How to Log into cPanel)
Step 2: After Login to cPanel Search For "SELECT PHP VERSION"
Change PHP Version
Change PHP Values
Here you can change "max_execution_time" "max_input_time" "memory_limit" "post_max_size" "upload_max_filesize" and More Values.