As ss said it's obvious that in order to generate a better sense of hype and balance, she needs nerfs. If a FP where to be consistent and defensive, unless you are something like raiden or kratos youi may have an extremely difficult time, who ironically also need a good amount of nerfs. By nerfing a good amount of the cast including her you're making character that are unable to carry bad players like FP actually can.
While having the best grounder in the game, a universal grab confirm along the difficulty of isaac's (timing dependent), up to 90 safe KC's, amazing resets, block-to-grab-tech, AND an online infinite, theres simply some things that need to go. From experience of fighting good FPs, lowering the ap gain of her KCs and perhaps slowing down her aerial offensives are an excellent way to start, so that the rewards aren't so massive out of the many hits she'll be able to pull off,but that's just my input and thought on balancing her.