camgirl vs performer

camgirl and performer both are nouns.

Word	Noun	Adjective	Verb	Adverb
camgirl	Yes	No	No	No
performer	Yes	No	No	No

As nouns, performer is a hypernym of camgirl; that is, performer is a word with a broader meaning than camgirl:

camgirl: a female performer who performs sexual acts by camera on the internet
performer: an entertainer who performs a dramatic or musical work for an audience

Other hypernyms of camgirl include performing artist.

camgirl (noun)	performer (noun)
a female performer who performs sexual acts by camera on the internet	an entertainer who performs a dramatic or musical work for an audience