Complex sentence: Dlamini-Zuma was unpopular and unliked among AU officials for her disinterest, aloofness, and absenteeism, and her leadership as Chairperson was considered a disappointing failure, although she was praised for the managerial improvements she made.
Split into simpler sentences: Dlamini-Zuma was unpopular and disliked among AU officials for her apparent disinterest and aloofness, and her absenteeism. Her leadership as Chairperson was considered a disappointing failure, although she was praised for the managerial improvements she made.