My ENT says that the deviation is very slight but that nostril never feels normal. Should I have the septoplasty?

I am a singer and have a deviated septum. whenever I sing it always feels as though only half of my nose is working and when I do vocal exercises in my chest voice and head voice are fine but when I have to go thru the nasal cavity there's gurgling. Sometimes when I sing in that area it sounds like I'm honking.