The Trojans (3-2) led 40-28 at halftime, thanks to 14-of-28 shooting (50 percent) and a 13-0 run. The spurt gave them a 17-5 lead with 13:47 left in the first. USC also went on a 9-2 run spanning the final 2:11 of the opening half.
USC stayed hot in the second half, shooting 15 for 30 (50 percent) from the field.
The Aggies (2-3) struggled from the floor, shooting 20 of 56 (35.7 percent) and trailed by 23, 75-52, with 3:24 remaining.
Christian Kabongo led New Mexico State with 14 points and seven rebounds.
Vucevic averaged 16.7 points and 9.7 rebounds during the three-game tournament.