speed of detail reader server

Hello, I'm using freeradius 2.1.6 on gentoo to do decoupled accounting. I have everything set up, the only problem seems to be the speed of the 'detail reader server'. I do quite a lot off accounting packets on the box ( no auth ), the detail writer has already written 1.9G of details ( in about 5 hours ) to hourly files, but the detail reader is lagging far behind (still working on the first file). I only see about 1 row inserted per second, but I know the server can do far more. I have set load-factor to 100, doesn't seem to help. What can I do? Alex Oprisan