I only have one problem transfering from Paypal to my Wise USD account. Each time I do a transfer, Paypal informs me of a delay and something about a verification they need to do. My funds do clear into my Wise account, but only after 2-3 business days.
I have not done many Paypal to Wise transfers, probably 11 the past two months, but on each of them I get the delay.
And, lastly, I would not transfer too much money at one stage or have too much funds in my Wise account at any given time. Search Google for TransferWise account frozen and you will see many thousands of complaints and even news articles about people whose accounts got frozen for no reason. Transferwise then wants to do investigations into where your money comes from. Process takes around 6 months to a year before the money is available again. Most people who complains get their money refunded and accounts closed permanently. Seems the threshold for an investigation into your funds is around US$600-US$1000 when they freeze it.