max_execution_time in php.ini

Hello,
i´m configuring the Snapshot Plugin and i saw the message on the config page about the max_execution_time of the duration for the script.

By default my provider allows me 60 sec. but it seems not enough.
What is the recommended value for the execution time for your script (plugin).
I´m in negotation whit my provider for a higher execution time.

Thank you!