But you have to learn the correct pronounciation of each word first, or else it will be like a soup, and very difficult for others to understand what you are saying, even if you speak slowly to them. Since hebrew has just a few vowels and grammatical rules are difficult for some of us, the audio is of essential value as a learning tool. I see other courses offers a turtle button: I hope the Hebrew class too will offer this soon. Then it would be easier to learn good pronounciation by the turtle, but also practise by listening to fast speach without it.
It gets easier over time. I had this exact complaint a while ago, but after a year or two of doing these exercises, I'm hearing it much more clearly. When I heard this one, I thought she said: bechama nashim medubar. But then I remembered that "ah" and "ha" sounds are routinely slurred into the next word or almost not pronounced, guessed that the second word was anashim, and got it right.