I have very little time for shacharit, because I have to go to work. The minyan in the city where I live is very late. So I try to daven everything before the Amida and the Amida itself with a Tzibur, ...
You wake up in the morning and are famished. In order to have strength to go to Shul you need to eat prior to Davening. However, if you were to Daven without a Minyan at home you would not have to eat ...