Nick here from Shopify.
That wouldn't be possible in this instance. The only way you could have your payouts go to your PayPal account would be from the sales made via the PayPal payment gateway you have set up on your store. Any other of the sales would have to go to the bank account located in the Shopify Payment region you are in or another payment gateway which you selected.
Hope this helps and answers your question!
All the best, Nick
If someone paid for a product in your store via PayPal, the money would go directly into your PayPal account and not your bank. The payout time is something you would need to contact PayPal about directly, this is something only they can advise you on in terms of their gateway.
If someone paid for a product via card through another gateway on your store, then the money would go directly to the bank account you have associated with your store. If you are using Shopify payments you can see the following payout times depending on which country you are based in:
You can see more about this in the guide Shopify has about getting paid with Shopify Payments here.
If you used a gateway other than Shopify Payments, you would need to contact the gateway directly to find out their payout times. This is something they would know and be in control of.