I’ve watched a handful of Nina’s radio shows (one from Ibiza last year I think was alright) and there’s been nothing wrong with the mixing, from a techno standpoint. She’s not in Diggers class obvs and would prob struggle to build it up from house into banger territory but that’s not what she does so it’s a moot point.
I would say it’s mostly Euro trash Italians and Germans who wear shades in the pitch dark and Russians on crocodile who go to her gigs, and Zackster, so maybe there’s room for improvement.