sagetvtranscoder on multi-core systems

[andyvr4]

I'm experiencing a problem with my dual core athlon processor when I try and watch programs recorded on either my HD-PVR or my HVR-2250 (analog side) where when I'm watching them remotely on the hd300 the sagetvtranscoder process will set at 50% load level and will not go any higher even though there's nothing else running on the server and the video is not getting trans-coded fast enough (every 2-3 minutes the program will start getting jumpy and I'll half to pause to let the buffer build back up).

I know that was a big problem in V6, but I can't find any current post on V7 and rather there have been any work arounds! The program does appear to be multithreaded as both cores are getting loaded it just appears they only get loaded to 50%!

I've also noticed that if I pause the program to try and let the trans-coder get a little ahead the sagetvtransoder process will continue running for around 15 seconds at 50% load and then it'll stop running until I press play again and start viewing the program at which point it'll start back running at 50%. Is there anyway to tell it to buffer for more than 15 seconds while I have the program paused?

Thanks for any help that you guys might have to offer!
Andy