using the power of clone with powershell

[mati]

that's what I would like to do...
I am using a modified version of a script of this forum to create alphabeticaly sorted speed dial keys for all users of a group.
It works flawless, but with a group of around 50 users, it takes up to 4 minutes to complete, because it sets every speed dial key for every single user.
I already tried to speed things up by loading the set of names only once and limiting the number of speed dial keys to the actual number of group members...
I was wondering if I could also use the cloning function within a powershell script, this would drastically speed up this process.  

thanks for your help!