Lube that drivetrain.
If the chainline is straight, it'll quiet down after a while.
If not, you'll get used to it and it won't matter.
My San Jose is a bit noisy after I had to replace the rear wheel. I could mess around with spacers; it's not off by much but I could spend hours doing so and still not get a quiet bike so I just ride and sing LOUDER.
Here's the obligatory Sheldon Brown link on chainline:
All About Bicycle Chainline