Since you say you just got her, her wobble may seem especially bad due to her being stressed in her new home. I'd wait until she is closer to breeding size until you make a final decision.

Even if she continues to be a bad wobbler, I might give her at least one trial breeding, to see what her offspring are like. I've heard that some bad wobblers can produce spiders with low wobbles, and vice versa.

If all of her spider offspring are bad wobblers, then I'd probably discontinue breeding her.