To boost your earnings, and be able to pay your users more, you might consider using shortlinks.
Shortlinks are services that pay you to have people go through a page filled with ads. these pages usually
have a captcha as well, to make sure users stay on the page long enough and to verify they aren't bots.
Depending on your faucet script they can be integrated with your faucet.
Below is a list of verified shortlink services that accept faucet websites.