Was it a one-game anomaly? Or the start of a turnaround? Based on Monday night, it could be the latter. Bridges was at his best in the opening-round, series-clinching rout of the Hawks, the kind of performance the Knicks would like to see more from the two-way wing, and he built on it in the opener of the Eastern Conference semifinals. Bridges attacked, was decisive and was typically strong on the defensive end, helping the Knicks to another blowout victory, a 137-98 mauling of the 76ers in Game 1 of this best-of-seven series. He had 17 points on 7-for-10 shooting along with five assists and a plus-19 rating in 27 minutes. He also kept 76ers star Tyrese Maxey under wraps. “It’s very important. He’s a huge factor for us,” Jalen Brunson said of Bridges. “He’s been playing great.” Mikal Bridges reacts during the Knicks’ Game 1 win over the 76ers on May 4. Charles Wenzelberg It was a down regular season for Bridges.…