There are times when a new user is added/restored to an AD group, although the access to the SharePoint sites are back, the audience targeting does not catch up immediately, causing the user to unable to view some of the audience targeted web parts. After some research online, it is found that a Full User Profile Synchronization is needed to have the audience caught up. (See this article for example).
My question is - any better way to have the audience targeting catch up sooner when a user is newly added or restored? After all, the Full User Profile Sync is not meant to be scheduled too often and the running of it is relatively costly.
Environment: SharePoint 2013 On-Premise