More nicely?

I’m having one of those things where you’ve heard so much Chinglish that you can’t tell if something is right or wrong. :loco:

Is it proper English grammar to say “Betty plays nicely, but Veronica plays [color=blue]more nicely[/color].”?

Is there a better way to say this?

I’m sure it sounds like a stupid question to most of you, so please, be gentle. I’m learning as I go. :pray:

it is proper. there are other ways to say it–Veronica plays better comes to mind–but there is nothing wrong with your example. more is used for the comparative of adverbs with only a few exceptions.