Template:M summ Equity Derivatives 10.2
Only relevance of the Cash Settlement Payment Date or Settlement Date is that the former relates to money payments and therefore cash dividends, the latter to physical delivery of securities, (i.e. scrip dividends), which are more fraught with disruptions.
So your cash payments will usually get paid on the intended Currency Business Day; scrip dividends might not get to you for a few days if the market is a bit salty.