I am assuming this is more of a MSFS issue rather than AIGTC.. But is there anyway to lower the amount of times a flight the ATC is telling the same plane over and over to expedite descent? It gets rather annoying quickly..
nothing we can do
I do not understand why you could not do anything against this problem ? AFAICS the generated flight plans are incorrect having the cruise altitude for each and every waypoint, even the airports. Which is IMHO why the planes cannot comply with ATC. PLN files should be generated using the complete format )8as MSFS generates itself) and with a plausible profile using Alt1FP and possibly Allt2FP and ALTDescFP rules, then it should work as expected, again IMHO.
It may be your opinion however, it's an Asobo bug to do with the altimeter setting on AI traffic.