Ok, this is just insane. Just did a little experiment.
Try it at your own risk though. I've seen it freezing up certain machines completely, requiring a reboot, but it works fine on my laptop.
Open up Firebird, then Task Manager, click the Processes tab, look for MozillaFirebird.exe, right click it and set priority to Realtime.
Truely lightning fast page rendering.
Again, this puts a huge load on the system each time Firebird needs CPU time, so make sure you're not running any other CPU-intensive apps at the same time.
Also note that this will
not improve your raw connection speed in any way. It definitely seems to improve page rendering time
significantly though. The browser also "feels" much more responsive (scrolling/menus etc.).
I'm not sure if I'm imagining this, so I really want to know what your experiences are.