My sapphire pro has two of those fans, one each side.
And blows in a wide fan from both sides.
I could improve it quite significant;y with a shaped duct each side, insted of the metal deflectors.
But honrestly, with a 0.4mm nozzle, my default print speeds is 150mm/s at 0.3 layer height. And that's on a factory spec machine.

But that rocket - damn for something that size, that is really shifting the plastic !
Very nice !

You know this means you could knock out a two part pinball cabinet in about 8 hours :-)
A few internal wooden batons for extra rigidity and you'd be good to go :-)