I don'r know what you mean by more efficiently, I only subscribe to a few channels on Avantgo, Accuweather, fileflash, PC World and acouple of others, just sync and go.
I did find another program for free that I like much better. HubDog!
A lot of Channels to chose from, can also download podcasts and music.
It has setting so you can store on any storage card too. I use it everyday!
www.hubdog.com