The time that transpires in Narnia is always more than the time in this world. Based on the "new order" (@Satanicpuppy comment), Lucy ages slightly and is still a girl between Wardrobe and Caspian, but Cair Paravel has gone from being her lived-in kingdom to ruins; hundreds of years have passed. Within one book, Wardrobe, Lucy discovers Narnia and is there for what she considers a long time (Narnian hours, at least), but when she returns only English minutes have passed. Her siblings reproach her that she needs to take more time if she wants them to notice that she is missing.
Digory / Professor Digory / Lord Digory is a boy in Nephew, a professor with white hair in Wardrobe, and older still (but still alive) in Battle. In Narnian time, his life crosses thousands of years, from the beginning of time (Nephew/Genesis in the Bible) to Christ's death and resurrection (Wardrobe/Gospel of Luke) to the end of time (Battle/Revelation).
When people return from Narnia to England, their chronological ages seem to revert back to that of their departure from England. For example, Lucy, Edmund, Susan, and Peter spend years in Narnia and Lucy matures to being a young woman; however, on her return to England she is restored to her younger age, as a girl.
I can't remember any instance of time in England going more quickly than time in Narnia (but I could be wrong).