It is hard for a dog to chew her food. People can keep their mouths closed while chewing. Most dogs can't and, if they were to chew their kibble, it would fall out of their mouths. If you think she is eating too fast, some people recommend putting large stones in the dish (too large to pick up and swallow). Then the dog slows down because she has to work around the stones to get the food. However, it sounds as if your dog is eating normally. Most of her digestion is going to take place in her stomach.
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