That's a great point you make, I think we all seen the best of Kane under Pochettino, He's had loads of different styles of managers going from one extreme to the other, Pochettino, Comte, Nuno, Tuchel ect
As you said he hasn't modernised his game which comes down to the coaching of the player, He's doing the same thing he's done for the last 10 years or so...He's at an age now were he has to cut out the dropping into midfield and just look to be a fox in the box maybe.
Quality centre forward, He is lethal on front of goal.