The Maggid of Mezeritch used to tell his students that it is more important to be careful to bentch with kavanah than to daven with kavanah. 

Prayer was instituted by the Anshei Kenesses Hagedolah (Men of the Great Assembly), whereas Bikas Hamazon is a positive mitzvah of the Torah. ~ Toldos Aharon

Perhaps this shabbos, let’s try to focus a little harder on benching with proper kavanah. Have a wonderful uplifting shabbos!