The funds will be on May 15, but I need to change PayPal address. Is there way to do that?
Unfortunately I think you may be out of options. 
You cannot change the email, but you can request to have it cancelled by contacting support.
Unfortunately, however, I think you won’t get a response in time because it’s the weekend and support tends to be slow.
PayPal payouts will be arriving in about 40 hours from now. If the incorrect email is not registered to any PayPal account, you will actually get an email from PayPal allowing you to claim the funds with a different account.