Why was f(x) stage presence and live performances so much better than Red Velvet and Aespa?

I remember people use to say f(x) had no stage presence and was poor live performers but that was never true. They always rocked the stage unlike Red Velvet and Aespa who kind of just show up most of the time. Maybe it's a 2nd gen thing where groups back then had to perform good and mostly did live singing. Or maybe having Luna and Amber on your roster will automatically make you better on stage cause you can really see and feel the passion they have for music and performing.

Quote from merekede

I admit theyre pretty good especially during 4 walls and amber is still the best rapper out of all 3 groups

A lot of people didn't like Amber's rapping but I always thought she was great. The crowd always went wild when she did her rap parts on their songs.