Would you tell me what games you have as a point of reference that the combat feels stiff and clunky? I think I generally play games with similar kinds of pacing so I haven’t personally noticed anything. It’s not as fast, fluid and flashy as say PSO2 New Genesis, but I wouldn’t say it feels stiff or clunky to me.
Agreed the UI is awful though. There’s a lot of missing functionality too… like there’s just no way to manage echoes in their own screen.