Typically, if a merchants wants to pay low fees, they get access to their funds later (e.g., ACH payments received after 3 days). If the merchant wants to get access to their fund immediately, they would have to pay a higher rate (e.g., credit/debit cards payments are received overnight).
This seemed to be an immutable reality that merchants had come to expect. Lower rates/fees and 'immediate' access to funds seemed to be a contradiction.
There is light at the end of the tunnel. Digital Transactions reports that PayPal is piloting a payment method where the merchants can have access to fund immediately (overnight). The rails are different from ACH and payment card rails. The disruptions keep on coming.
It will be interesting to see how this innovation plays out. All the best to PayPal for continuing to move the ball forward. Innovations that reduce online merchant's cost of accepting payments cannot come fast enough, especially in the current economic conditions.