I have decided to drop PayPal as a payment processing provider since they will be increasing their fees for online payments.
Paypal says the move 'reflects the value of their proprietary services,' but I suspect that it is to at least partially cover the defaults of PayPal Capital lending activities. Regardless, I will no longer be using them. I hope that Shopify does not mimic their rates (since Shopify is also now into the lending game).
If you are fond of using PayPal, they do offer a debit card, and this can be used to make purchases using your PayPal balance.