A faster version of pchip ?

Hello everyone !

I'd like to know whether somebody knows (or has tweaked why not) a faster version of pchip to carry out cubic interpolations. Indeed, I repeatedly use this function in my code and when I catch a glimpse at the profile summary, this is the point which needs to be optimized. I specify I only want to replace it by another one with obviously a better efficiency.

Thank you for your help !