How long does it typically take for Paypal to notify JotForm of a successful payment?

I am currently testing a form that uses paypal payment integration. I submitted my first test payments 24 hours ago, and the forms submitted are still pending in the "Incomplete Payments" section, meaning admin emails about the payments have not been sent. How long does it generally take for Paypal to report this information to JotForm so that JotForm can send email notifications? 

Edit: I am aware that I can submit the Incomplete Payments manually, but I'm looking for a more automated solution.

Generally, the payments made through PayPal will be notified automatically and instantly to complete the submission. Could you confirm if you are receiving the PayPal payment notification after submitting the form and the same submission is still in incomplete submissions? Could you check if the IPN is enabled in the PayPal? Please go through the FAQs of PayPal incomplete payments:

https://www.jotform.com/help/272-Paypal-Incomplete-Payments-FAQ

Please get back to us if you need any further assistance. We will be happy to assist you further.