LOL. As it turns out, with a 0.6mm nozzle, it’s practically a wash in regards to speed limits, because even at a flow of 22mm3/s (to use the current example of eSuns filament), it’s the flow rate that becomes the limiting factor, not the speeds in the default process profiles.
Of course, with at 0.4mm nozzle, there would likely be a significant difference between the defaults and what’s truly possible, without sacrificing quality.
QED