Changing terminals Shanghai

Hi there,
I'm coming home from Auckland for a short break with ANZ to Shanghai, followed by VS to LHR. I need to change terminals (2 to 1). Can anyone tell me their experience of this and how long it took? Thank you.

I do this regularly as I still use VS to HKG (via Shanghai) - it is a lot easier than it first appears.
It is about a 10 minute walk through a straight corridor - easy to find your way.
There is a pointless security screening before you enter the other terminal but that's about it.
Set your expectations low if you plan to use the lounge.