compile time of code using long tuples

["Foelsche, Peter" <Peter_Foelsche@mentor.com>]

I'm the author of some software which dumps out C++ code to be compiled with g++.
This code sometimes contains many different and many long tuples. I deduced that long tuples cause rather long compile times.
I already wrote some compression, which collects identical entries in such a tuple and moves them into an array.
But this compression reduces (run-time) performance.
I already wrote different tuple implementations, and one of the compiles much faster than the regular provided std::tuple.
What could be the criterium for such a tuple implementation, which makes g++ take more or less compile time assuming the same code using this tuple?

Peter