Is it normal to feel impatient in lectures when a lecturer explains material that could be obtained from textbooks?
You have to take into account that many of the courses you attend are not made for you. They are probably made for people that have a lot less experience. Even though you might not have a lot of knowledge yet regarding the topic you are attending a course in, you have much more general knowledge and acquired learning skills throughout your PhD. 

If you want to learn these new things through courses, I think you just have to suck it up as the focus of these courses is probably on less experienced people. Alternatively, you could pick up some text books and start learning like that.