Yes Mandy plays well infront of a big crowd playing a big name. For example Kvitova, Stephens, Wozniacki, Serena all these matches she made pretty competitive. But then she could lose to a nobody the next week. .
Significant that she was finishing it by a forehand winner. She was absolutely dominating, was hitting some awesome winners and forcing so many errors of her opponent. But she made some errors too so that Will got finally some games.
She was serving very well and didn't admit any break. She had to save only one break point in the whole match.
Will wasn't of course that strong but she was struggling and Mandy hat to work for her points by a mixture of power and patience. Many of her seeded contenders were failing against opponents like Will.