Subtracting one plane region from another

[User_aaa (User)]

Hi Guys,
I have bunch of surface like below

and for each layer I’m trying to subtract the blue surface from the orange surface

to achieve a surface like this

I could extrude these surfaces and do a solid difference or mesh difference but as the number of the surfaces increases (as I have many) the operation starts getting slow.

Does anyone have any better way of approaching this? Any help is appreciated. Thank you in advance!
GH Reference.gh (336.8 KB)

[Quan_Li]

GH Reference Edited V0.gh (424.5 KB)

[User_aaa (User)]

This worked great thank you!