She's an alright wrestler but she's been surpassed by numerous women in WWE. Her character was a less vanilla version of Bianca (To be fair, Sasha came first, so I guess Bianca is a vanilla version of Sasha) but the problem for her is Bianca is a much better wrestler, better overall athlete, probably more marketable, and easier to work with.
End of the day, she's not worth big money in WWE because she's a fringe Top 5 women's wrestler there. (In a year or two, barring disastrous development for Stratton and Jade, she wont even be fringe) She'd be the top draw for AEW's women's roster... Problem is that's also because AEW's women's division is awful.
... Even if AEW's women's roster was good and she had a solid group to work with, $5M/year for her is absurd.