>>372

「普通に」here is a slang word which is hard to explain. It is said that 40s or more can't understand the word, like "moe".

Basically, it means nothing. Nothing wrong if you ignore it. 普通にウメュー！ > He is good!

Though the definition may differ from person to person, IMO the nuance of this 普通 is the opposite of "on condition".
If the dancer looks young, you may feel "He is good despite (on condition of) his age".
But if the dancer is so good that you feel mentioning his age is tasteless, you may say "Easily, he is good."
This "Easily" is something like 「普通に」.

"Without doubt" shares similar concept, but 普通に is not so strong word. "Naturally" or something like that.