The performance of a dog clipper is one of the most important factors that should be considered when choosing a clipper. The power of the clipper determines the speed and efficiency of the clipping process. Machines with higher power can cut hair faster and more efficiently, which is especially important for dogs with thick and tough coats. On the other hand, lower-powered clippers may be better for dogs with fine or sparse coats because they are less prone to generating heat during use.