There's a whole lot of "It depends" stuff in this one.

First and foremost, is it depends on how you're arriving at your 1:10 time. Is that total real time or cyclometer ride time? No bike can make you faster at a stoplight. Hell, I'm just as fast as cars at a stoplight.

It also depends on your level of fitness and how hard you work for your current speed. When I switched from a hybrid to a road bike (a Trek 1000, forerunner of the 1.1) I didn't get a lot faster immediately. When did happen was that my ride got easier, then over time I got faster. The hybrid seemed to take a lot of effort for little forward motion. The road bike is hugely easier to pedal, especially over hills.

The load you intend to carry is another factor. My Trek 1000 is skittish with that much load. Just because it can fit a rack doesn't mean it's happy with a load. My main commuter, a Trek Portland, has a longer rear end like a touring bike. It seems to get even more stable with a load, and the more the better.

Still, 30 lbs is a lot to carry back and forth every day. Is there some way to reduce that? You're a student? Do you need to carry every book for every class every day?