It will be more unsafe to go 30(which is what it'll do right now) than it will be doing 55 on these roads. At 30 I will most certainly be killed to death by other motorists.
Yes, there are plenty of "what ifs", but there are those at any speed. I've heard the saying that it's not if, it's when you'll have a crash on a cycle.
I'll be wearing protection
if I'm doing those speeds. The thing is, at 30, this is a hobby toy and nothing more. At 55 it's alternate transport to and from work. I'll take the risk. Life's too short to ride slow.