On one of my projects, the writer really wants a noir style comic with heavy narration. I don't like it myself, but he wants it in there, and sometimes its very hefty. In that narration, he tends to use more adjectives. It adds flavor to the scene that we might not be able to tell easily in comic form. Temperature, city history, why a certain place is important and relevant, etc.
Adverbs describe a verb, so when you use them, and adjectives for that matter, use them to add to your words, rather than just to describe something.
"Quickly walking..." is better than "Quickly rushing..." - "Rushing" on its own has speed. We tend to see "walking" as a slower pace.
Another way to use adverbs is to prepare the reader for the next page in advance. Having a person entering a cave in your comic might be the last panel on the page. To build intensity, you might use something ike "He entered the dark, cold cave." The next page might clearly show him shivering in darkness around stalactites, but the writer can give a reader a small hint, preparing them for some new part of the story. If you read about someone entering that cave, its more engaging than just watching them do it. You, the reader, also feel like you're entering the cave, not knowing what's ahead.
Like all writing, you have to learn when to use certain things, and when not to use them. Just because something exists isn't grounds for using it, but it's also not something you can always throw out. If it "feels right," put it in.