I don't think she's playing much better (I have not seen any of her games)... She's the 2nd leading scorer on the team tallying almost 18 PPG and just over 15 RPG. But she's playing over 32 MPG. At UCONN she averagead 16 MPG and 5.4/5.0. But she was also playing behind 3 AA's, an Olympian, and a 1st round WNBA draft pick (not that she was behind "guards" on the depth chart... She came off the bench for UCONN spelling Napheesa or Gabby. When she was in, she was the 5th option on offense.
Now she's a starter and probably the 1st or 2nd option on offense, on a team with far less talent. My point is, you could take almost any player who got little PT and transferred and look at how much better their stats are when on a team with far less talent. Courtney Ekmark - now a starter for ASU averaging 26+ MPG and 9.5 PPG, 2.5 APG and 4.5 RPG. It's not that she's playing so much better, she's just getting a chance to be a starter on a team with less talent than UCONN and she's much more a scoring option than at UCONN, even when she got into games.
This is my little "point" I generally make - UCONN has so much AA and potential AA talent that it's very hard for 2nd tier recruits (really, anyone ranked below 20-25) to get traction at UCONN. Leaving aside for the moment the struggles that freshmen always have, unless you were a top 20 kid coming out of HS, it's unlikely you will earn PT at UCONN as a starter or high MPG reserve off the bench. Just look at how much success Butler, Johnson, Banks, Emkark, Edwards and Boykin have had at their new schools.
Banks and Edwards were highly ranked recruits - I think Banks could have earned significant PT her senior season at UCONN, and Edwards is a very good player who I believe was just not a good fit - both of them could have contributed IMHO, and depending on injuries, Johnson/Butler could have had some good PT too, but all those kids have had great careers at the schools then transferred to.