Hope she arrives at Moscow with a better grip on her serve.
Technically she had a good serve until she landed in Asia..
In Asia, she got anxious, nervous and greedy, having "rankings and titles" in her mind instead of focusing on the tennis itself.. Her serve started to fall apart Sharapova style because she was not focused.
I.E. - Before Asia she used to hit few balls to the "T" point at the center in every match and she got lots of points there. Against Venus and Ula she forgot that the "T" serve even exists, and she just went into attack mood without thinking.
Wrong attitude was her problem, nothing bad technically. But its normal.
She is just a human being, she wanted success now and it made her lose focus on the game itself point by point. Just 22, she learns, she has a lot of time to get where she wants to be.
The future is good Simona, just take it easy. Play tennis, not "rankings"