Might I offer a few suggestions that may drop a couple of seconds from your time. Not trying to pick anything apart, just done a lot of instruction with BMW on this track
. Just here to help as I was in the high 1:30s at one point.
Your hands need to be at the 9 - 3 position permanently. Shuffle steering causes the brain to lose relativity of where straight is when unwinding the wheel on exit. Also, be sure to relax your fingers...tight grip of the wheel does not let us feel the wheel's feedback. Smooth inputs!
In turn 2, you want to be one cars width off of the inner edge. Too close in causes all kinds of issues with understeer to reach the cornerworker apex at the end. Additionally, once you have turned the wheel, you want to keep it held in that position for the entire turn. Once the wheel is set at the beginning of the turn, you use the gas pedal to modulate vehicle position and apex planning...(less gas brings you in-more gas pushes you out).
In 3, not sure if you had downshifted to 2nd gear and you had major traction issues...but the steering wheel went crazy. Even though it seems underpowered, I always only go to 3rd for smooth traction reasons. Smooth steering inputs are what keeps the car so well balanced.
In 5, I like to only apex the second apex (cone+grate) in this heavy of a car. If you stay center-left after the downhill braking, you can reach the second apex cone much easier which allows you to straighten the car out earlier for 6.
In 8, it isnt really even a turn if you enter mid track and stay mid-inner. That inside position is bumpy as hell and can sometimes unsettle the car when it comes time for the braking zone before 9.
In 9, taking such a shallow approach throws all of your exit speed to the left instead of straight down the straightaway. Try a more outside left edge approach and just before the last red mark point the car into the apex nice and late.
I think I saw you out there on some of my cooldown laps, if you were the black sedan. I was the white coupe M3 GURU plate.