Don't think the fuid has boiled (then you'd have nearly no brake power at all).
Guess the pads are cooked up now and should be replaced.
Buy a s pair of Tarox F2000 or G88 and a set of at least Ferodo DS2500
or even better Pagid RS4-2. And don't forget to install a brake ventilation.
Just open fog grills or remove fogs + hoses into inner fenders.
These pads aren't road legal and they might squeek sometimes, but
they can handle the heat and they bite from cold like stock. If you want
to go the legal way choose EBC Yellow or Ferodo DS Performance.
Not as good though, but cheaper and ECE R90 compliant.
NB:
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