Thanks for the reply.
I think PP uses the faster payments system, so withdrawals are usually instant but guaranteed within a couple of hours. Then the fastest way to obtain BTC from your account would be to use your debit card. People have just recommended some to me, but I personally have used Coinmama without a problem with a credit card (debit shouldnt make a difference), only downside is I am limited to 500 week using a card (or 10k week using bank transfer).
All I will say is stay away from Coinbase!
So PP > Bank > Debit card > Coinmama (or alternative) would allow you to buy BTC with the funds in your PP all within the same day!
Hope this helps