Watching "Wildest dreams" right now I certainly wouldn't say the picture is better. In fact its average.
I suspect its the same encoder, they've cut the bandwidth to see if we notice.
Well lit scenes seemed OK, however the "performance review" scenes which were less well lit had what looked like camera noise.
It was certainly struggling with the noise and showed artifacts when viewed close up.
Not particularly noticeable from normal viewing distance.
Obviously without a direct A/B it's impossible to say what this looked like at the higher rate.