Something just occurred to me.
In SH4, when I play with full realism settings (i.e. manual TDC + no map updates), I use the pause key liberally on the theory that I am doing the work of a half-dozen men and therefore want to take me time say flipping through the recognition manual, estimating range/AOB from the periscope, plotting target range/course/speed on the NAV map, fine tuning the torpedo settings, etc., etc.
I am not sure how that is going to work if my virtual
Kaleun has to sprint from station to station...