R12.1.3 Payables: Payment Manager performance issue after upgrade

Post upgrade to R12.1.3, there is an issue in Payables which you can find from MOS in the note "Performance Problem In Payment Manager (Payment Dashboard Page) After Database Upgrade" by way of document ID 2014319.1 where it details how several different actions can take up to a minute!  First you must gather stats, then set or remove several database parameters, and bounce to make sure it takes effect so you should check out this note to see if you need to review the parameters and then take action if so!