Holger Rune says he is now in a better position to understand where the frustrations have come from and that he is usually a very laid-back person.Rune has had a breakthrough season, breaking into the top ten rankings for the first time, and winning his maiden ATP Masters title in Paris.The season hasn’t always been the smoothest though, and the young Dane has developed a reputation for unpredictable behaviour on court. As well as several heated arguments with officials, Rune also caused controversy in the summer by appearing to shout homophobic slurs at himself during a match. In another match the 19-year-old appeared to angrily shout ‘leave’ at his m …