If you’ve never used it before, I would start off by setting PBS to 2. This way when you’re trying to mqke pitchbends, you can adjust easier to using the parameter because there’s less that can be done so less issues. Eith it at 2, pitches on the parameter are two nites above and beliw, so half way drawn would be one note, and all the way to the bottom or top would be two notes. That’s what I did to learn.
I don’t know what you mean by makes her sound bad, but I assume you mean like pitch jump/breaking? Pitchbends usually have to be intricately drawn or they can make the voice distort a bit. Sometimes it’s just a matter of learning curveand practice that’ll fix it
alternatively, you can do note bending, which is creating pitchbends by drawing notes. Basically, break up the note you wanna pitchbends into multiple notes in the places you want them and just extend the word over those notes