Giod morning guys.

I have installed a hydraulic clutch kit and something is wrong but I don't understand where the problem is.
I have mounted a Sach Performance with 6 Paddle ceramic but it is impossible to step on, it is incredibly hard.
The mechanic says it's because of the reinforced Sach but I've always read that this mod is the best to make the car feel comfortable, so I think there's something wrong and I don't see where.
Can you help me?