I've been having lessons with an instructor for around 8 months (this isn't my first instructor either and I've had big breaks between lessons in the past). I'm only having 1 hour lessons now also due to cost/time but often my instructor will often want to sit at the side of the road while she explains what went well/what didn't work with my drive to the location. This can usually take 15-20 mins so I'm only really driving for 40. I previously had 2 hour lessons and we would sit at the side for 45 mins sometimes. I do like my instructor, she's good and we get on well but it's getting on my nerves because I want to pass my test soon and don't feel like I'm progressing as fast as I should. Is it time to move on?
After my first lesson I don't remember any protracted talking. We just chatted as we drove around. I think there might have been a couple of explanations for manoeuvres and things, but unless your instructor thinks this is the best method for you to absorb what they are saying, it seems unnecessary to me.