How did naruto get into sage mode so fast, he was normal till he rips open the paper tree. Do you think he has finnaly found a way to stay in sage mode longer or at least found a way to use to fox to enter sage mode when ever he wants, or am I just over reading it.

Great post ...
Nice question .. I feel the same like that ... ??
How could naruto on sage mode so fast .. ??

IMO, I think after Naruto defeated the 6th Pain, he didn't return back to normal mode. He was still in Sage mode when he left and started looking for the real Pain. Correct me if I'm wrong. :-)

There is a time delay between when he was in regular mode and sage mode. He was jumping through the trees to get to Pain then next scene he is in sage mode. He could have stopped at any point to focus the sage.

Also, he was last working on entering sage mode while running. Maybe he is building natural chakra while running then focusing it standing still, which would make it faster for him to enter sage mode time after time.

before naruto entering the nagato`s secret hideout, ,he`s stopped a seconds to build a nature energy to become a sage mode.