Blend Shape for Character Customization Performance cost

ravset

Hi everyone!

I'm thinking about having a character customization in Unity with full use of Blend shapes. The main thing I'm trying to find out is if this will cost too much in performance.

I know that Blend shape animations are more demanding for memory, but I haven't seeing much in regards to customization, where you use shapes only for character creation.

Does anyone know more in regards to this or any other places I can search?

Thanks! :)