Putting aside some awkward scenes, I think she was actually very good in MGSV, that is, she decently portrayed Quiet for what she was - fanservice character, who was only as a character interesting 2 - 3 times when she actually spoke.
There is only so much one can do with characters such as Quiet.
Btw, Joosten is super hot, and if anyone is interested, please, check out porn with Princess Leia.
You won't be dissapointed.