BOSTON — Adjustments were made and LeBron James played much better, and it still wasn’t enough to beat the Celtics.Boston is out to a 2-0 lead in the Eastern Conference finals after beating the Cavaliers 107-94 in Game 2 on Tuesday. Cleveland is the three-time conference champs with all the vets, but was outclassed through two games here.”We’ve been here before, so we’ve got to keep our composure,” coach Tyronn Lue said. “I thought down the stretch we took some bad shots.”The series shifts to Cleveland Saturday, and that’s where the good news starts for the Cavs — the Celtics haven’t lost at home in the postseason (9-0 now).James recovered from his poor Game 1 to score 42 points with 10 rebounds and 12 assists for his 22nd career triple double in the playoffs and third this postseason. Kevin Love added 22 points and 15 boards for the Cavs — who led by as many as 11 in the first half and by eight at halftime.”We have an opportunity to go back home, protect home court,” James said. “We’re going to use these days to really dive in on what needs to be done to help our ball club be successful. They did what they had to do, and that was protect home, and now it’s our time to try to do that, as well.”As expected, Lue went to Tristan Thompson as a starter for Game 2 to put a lock on Al Horford. As a byproduct, Kyle Korver moved to the bench and therefore off of Jaylen Brown.Well, Brown destroyed JR Smith, who went scoreless on 0-of-7 shooting and looked lost on defense. Brown scored 23 points and Shaker Height alum Terry Rozier added 18 for Boston.What a nightmare night for Smith. He shoved Horford in the air while Horford was trying to catch a lob for a dunk with 3:49 left. He was slapped with a flagrant foul for that, and then for a technical for jawing with Marcus Smart.As referees were reviewing the play, the Boston crowd at TD Garden was chanting something at Smith that, well, we simply can’t print.Korver scored 11 — all in the first half. Thompson had a nice game with eight points and seven boards. Horford shot 5-of-13 but still scored 15 with 10 rebounds.”We were terrible defensively,” Thompson said. “We were (expletive) defensively. Of course LeBron is going to put up those numbers and what not, but if we don’t get stops on the defensive end, they’re going to make open 3s and they’re going to have rhythm and their guys are going to feel good.”If you don’t play no defense, especially in the conference finals, you’re not going to win a ball game.”Boston took control in the third quarter behind 14 points from Rozier, who drained two 3s and dunked in transition. The Celtics outscored Cleveland 36-22 in the period. Through three quarters, Rozier and Brown were outscoring their counterparts — George Hill and Smith — 36-3.