Solasta's UI feels net superior, snappy, intuitive, and very responsive during fights.
And super ugly.
I find it "ugly" in terms of aesthetic choice (these guys come from Amplitude and they seem to have borrowed their same very detestable habit to make UIs that seem to be borrowed by a toolset and don't care to fit the mood and vibe of the games they are in) but in terms of functionality is WAY more intuitive and responsive of what BG3 offers.