More testing data is required for weapon speed. There also needs to be a differentiation between a volley's beginning animation and time until detonation. The two are not directly correlated.
Here and in several other instances (at the very least all grenade kit skills) Anet decided to use the same icon for the number of targets and the number of projectiles/grenades/whatever. I'm not familiar enough with your skill fact template to change that myself, so maybe someone should have a look at that. --Saphir (talk) 12:00, 2 March 2020 (UTC)