nVision performance with drilldowns and report books in 8.52

We have seen a continued decrease in performance related to nVision drilldowns and report books. We are looking into the possible corruption of the pstreeselectXX tables based
on various web postings and mos article 608488.1. The mos article states the following:

"The data in the PSTREESELECTXX tables can be purged.  Customers should do this if the data gets out of synch (especially after an upgrade).  Data can be deleted from both PSTREESELECTXX and the control table PSTREESELCTL."

It appears we do have orphaned records based on the following queries:

select count(*) from PSTREESELECT08 where SELECTOR_NUM not in (select SELECTOR_NUM from pstreeselctl);