ATLANTA — It’s impossible for Atlanta Braves shortstop Ha-Seong Kim to ignore the noise.Whether it’s boos at Truist Park, criticism on social media or his stat line flashing across the video board before every trip to the plate, Kim can’t escape the reality of his season.The 30-year-old is in the midst of the worst start of his career. Through 21 games, he is 5-for-62 with 18 strikeouts compared to seven walks and a .255 OPS.Not only is the line the lowest mark by a Braves primary shortstop through their first 21 games of a season in franchise history, but also by an MLB primary shortstop since 2019.No one is more aware of that reality — or more accountable for it — than Kim.“It’s obvious that this season has been difficult for me personally,” Kim said through interpreter David Lee at home this weekend. “The team is doing well, so I’m trying to contribute to the best I can. Sometimes as professionals it’s how it goes, and it is what it is. I’m trying to bounce back from it.”Kim’s struggles feel especially loud considering the Braves signed him over the offseason to a one-year, $20 million contract in hopes of him anchoring shortstop after they shipped Nick Allen, who started 124 games at short for the Braves last year, to Houston for utilityman Mauricio Dubón.Instead, Atlanta is rotating a cast through the position and effectively paying roughly $4 million per hit from Kim, who began the season on the injured list after having surgery to repair a torn tendon in his right middle finger.