How to store XML in Oracle?

Hi.

How do you store XML documents in Oracle? I have 200 objects that are
described in XML and are stored as CLOBs. When I read them from the DB
they take 0.2-0-3sec to read each. The screen usually consists of 10-20
objects, and that means that the server uses 2-3sec to generate the
resulting document(SVG actually). I find 2-3 seconds to be a bit much so
if anyone have any good ideas they are very welcome. 

-Christer