Comment by danudey

Presumably it has to do with:

1. All the checks it has to do to see if there are relations between tickets, states, triggers, actions, reports, etc.

2. Accessing separate subsets of data for each ticket from different locations and bringing it all together (epics, sprints, user lists, comments, reactions, linked issues, linked PRs and branches, etc)

3. The code is apparently a complete dumpster fire, from what I've heard from people at Atlassian.