Yes she have. Her new coach changed it., but I’m afraid Eurosport Germany isn’t the most objective source if you want judgment how good or how bad it is. Günthard works there and they obviously (over)protect him – sort of.
that "new" motion is not to make the serve faster but more save!vutt said:stats from today's match
Winning % on 1st Serve 28 of 40 = 70%
Winning % on 2nd Serve 7 of 15 = 47%
Fastest Serve 100 MPH
Average 1st Serve Speed 94 MPH
Average 2nd Serve Speed 88 MPH
So it's not faster! That's for sure.