I would say accuracy before speed.  Speed comes with experience.

Given the experience or skill set is there, then it becomes a question applying the KISS principal and getting the job done.

A big item that shuts me down on any nostr app is the lack of good end-user documentation.   This happen to me when getting started with the various nostr clients.   On the second pass, it finally sunk in.  Guess I have a thick head.