As someone new to GTD I'd suggest you use the standard weekly review checklist for a while before jumping off to make your own. Yours doesn't seem to have all three major portions, get clear, get current and get creative, in it. That combined with the fact you are probably doing actions rather than reviewing actions is why it's taking so long.
Originally Posted by Almost Done
I'd suggest you listen to the Guided weekly review webinar or podcast, use the 2 week free trial of GTD connect to get to it, and see how that works.
Oogie McGuire - Mac, iPhone & Omnifocus
OogieM on Twitter
Paonia, CO USA