19B issue with Latency Enrollment Dynamic Objects

Summary

Sever latency opening pages with enrollment Dynamic Objects

Content

We have nearly all of our upcoming 1300 in the seat training sessions in Enrollment Dynamic Objects.  We are using categories to in the Enrollment DO to display these enrollments for registration.  Ever since the 19B upgrade the latency to get these enrollments open is extreme.  It is now taking over 50 seconds to open a page that has an Enrollment DO, even if only 30 classes are returned in the DO. I am getting multiple complaints from my users who are trying to register for classes.  Is anyone else using Enrollment DOs and are you also experiencing latency to