There is some computation that could be avoided by unifying the friction factor and pressure drop methods, but I'm not convinced this is entirely the problem, both functions are analytical / simple.
Problem is poor performance with coolprop generally, not directly related to pressure drop functions
Best fix for now is switching back to thermo, as implemented since this was opened
There is some computation that could be avoided by unifying the friction factor and pressure drop methods, but I'm not convinced this is entirely the problem, both functions are analytical / simple.