I've updated the Quicklisp client today based on some feedback from Eric Daniel. He noticed that loading a compiled system can be very slow, and identified the bottleneck as loading dist metadata repeatedly (and unnecessarily). The old version took about 15 seconds to load a compiled iolib on my laptop, and the new version takes less than 3. Thanks for the feedback, Eric!
To get the update, evaluate (ql:update-client). Please let me know if you run into any trouble with the new code.