It is most important to come to church a few minutes early, so that an ample amount of time will be spent in prayer. We do not just pray for ourselves, but also for the priest who will be officiating the Holy Mass. Here is text from Magisterium Fidei, to remind us how important the role is of our priests in celebrating the Sacred Liturgy.
32... For such a Mass brings a rich and abundant treasure of special graces to help the priest himself, the faithful, the whole Church and the whole world toward salvation—and this same abundance of graces is not gained through mere reception of Holy Communion.
33. And so, We recommend from a paternal and solicitous heart that priests, who constitute Our greatest joy and Our crown in the Lord, be mindful of the power they have received from the bishop who ordained them—the power of offering sacrifice to God and of celebrating Mass for the living and for the dead in the name of the Lord. (79) We recommend that they celebrate Mass daily in a worthy and devout fashion, so that they themselves and the rest of the faithful may enjoy the benefits that flow in such abundance from the Sacrifice of the Cross. In doing so, they will also be making a great contribution toward the salvation of mankind.Source:
ENCYCLICAL OF POPE PAUL VI
ON THE HOLY EUCHARIST
SEPTEMBER 3, 1965