Find a way to reduce the publishing delay for bulles

There is a publishing delay when a user submits a contribution, described in this thread: https://dis-moi.slack.com/archives/CJUTD4M45/p1612942434022700

How can we reduce this delay? What are the options?

Start by reading the linked Slack thread for the described publishing delay, then trace the backend publishing flow to identify where the delay occurs. Done means documenting the available options and a clear recommendation for reducing the delay.

Written by the indexing model from the issue text.