The Tigers, whose 82-game homecourt winning streak against Louisiana teams came to end against the Colonels, showed far more intensity in their 79-56 victory against Tennessee-Martin.
LSU outrebounded the Skyhawks by 20 and outscored them in the paint 42-12. All five starters scored in double figures.
"I think the players were generally embarrassed by what happened against Nicholls," Johnson said. "We did a better job on the glass. The key for us is always coming out with a lot of energy. It was nice to see Malcolm (White) and Storm (Warren) play with energy."
White and Warren, LSU's two starting post players, finished with double-doubles. White accounted for 12 points and 15 rebounds after a total of 14 points and six rebounds in the previous two games. Warren ended the night with 12 points and 11 rebounds.
Tickets still remain for Sunday's game with Memphis in Tupelo, which is ranked No. 19 in The Associated Press Poll and is 3-0. All remaining tickets are $12.