Crystal is a pretty solid American noble-type hop in my experience. But it's still an American hop so is going to be more assertive and probably fresher than something imported. The hop flavor will mellow with time. Give it a 3-6 weeks of cold conditioning and see how it tastes.
Thanks. I'm in England so Crystal hops are more imported for me than German hops, sort of, but good advice about the cold conditioning. I'll see how it goes. I actually like the beer, it's just not what I targeted! So far at least. Cheers