WinForm or WPF ?

hi,

I am a programmer for 9 years with WinForm (from Visual-studio 2003 to 2013)

I am considering to start working with WPF and i have some question.

1. Other than design more beautiful, whether there are differences ?

2. Is  WPF programs works more slowly (Because of the design) ?

3. Is WPF programs fit for Kiosk mode programs ?

4. Are all the programming and features that I know will work on WPF (Crystal-report, rapi , OpenNETCF etc..)

please  advice 

thanks