She was still partly ill, I think (I saw her pack some tissues). Therefore, the on-and-off performance. Also, I saw a part where she was smiling to someone, not a sign of a serious contender. Nonetheless, a win is a win.
That's how I see it, too.
Great, that she get to the next round and now I'm waiting for improving her play as she gets to the playing routine.
Not Before 6:00 PM
 P Kvitova (CZE) vs M Minella (LUX) - WTA
Petra plays later in the day so I'll make it to see it, what else I could want? To see her win the match, I guess!