Complex sentence: Unlike most shows, showmanship depends more on the handler than on the dog, although how well the dog is groomed, its temperament, its attentiveness, and the quality of its gait, also affect the score.
Split into simpler sentences: Unlike most shows, showmanship depends much more on the handler than on the dog. Although how well the dog is groomed, its temperament, its attentiveness, and how well its gait is, also affect the score.