How does the Audi A5's Quattro system improve performance on wet roads?

I'm considering buying an Audi A5 but have concerns about its performance on wet roads. Can anyone explain how the Quattro system works and how it helps improve performance in these conditions?

The Quattro system is a type of all-wheel drive that constantly monitors road conditions and distributes power to each wheel accordingly. This improves traction on wet roads by effectively distributing power to the wheels with the most grip.