It is faster, yes, finally. To be honest it was annoying how slowly it started the app or a call. Should have been fast from the start.
There is a problem still, with the calls, when there is a drop in internet connection just for a second, the call can't recover. Because of this there are times when I have to use Skype to do the calls. Skype call recovers very well even if the connection drops on either side of the call. As soon as the internet is back the call continues. Also the sound is much better on Skype.