Hello there, I am not extreme player but I can tell you how to
go faster on 5 hairpins.
5 hairpins consists of 1st right and 1st left follow by 2nd right
and 2nd left hairpins right?
For the 1st right, brake until 140km/h let go of the gas and turn
early into the corner until you are slightly more than half-way of
the hairpin, step on the gas and stable your car.
For 1st left, don't step on brake instead just let go of your gas
and turn early, your speed should be ard 130km/h+ and 135km/h after
exiting from corner.
For 2nd right, depending on your speed...if your speed is 140km/h+,
step on the brake a little to fast reduce to ard 135km/h and turn
early. If your speed is ard 135km/h when you approach 2nd right,
let go of the gas and turn early.
For 2nd left, no need to brake at all, just let go of gas. You
should be entering the corner ard 135km/h. Don't let go of your gas
fully, let go half of your gas pedal and turn early.
This should improve your timings by few seconds, if you want to go
further...you need to use the gutters whenever possible. Remember
to use out-in-out driving line when going around hairpins.
Hope it helps.