Derech halimud is the way of learning, among many ways of learning, which they choose to learn. This has many aspects, for example how fast they learn (I am talking about first Seder), and which of the many mepharshim do they focus on.
I am just trying to gather information from wherever I can as I do not know anyone who sent there kids there.
I would just like to know how fast they move in first Seder.
Different people have differing opinions as to what the “the best derech halimud is”, and that is why there are so many. Would you mind being a little more clear when you say “the best derech halimud”?