Is this grammatically correct?

[Soubriquet]

I have to keep making phone calls to a certain government phone line. They use the phrase “please do not worry as we use this information to help people more quickly”

It doesn’t sound right to me. I’m not a person for grammar. I don’t care tbh but this always sounds so weird

It is correct, yes. I guess you're talking about "more quickly"?

Quickly is an adverb to describe how they help people. "More quickly" is a comparative adverb, i.e. they help people more quickly with your info than if they didn't have it.

What is it they say immediately prior to that sentence?

It's a little awkward and mannered, but not grammatically incorrect

Urm….they are asking for personal details and that it can sometimes be repeated