What's your normal cruising speed on a regular bike, and what is it on your bent? On flat road, no wind. Also mention if there is a significant difference in quality between the bikes.
I live near some trails that very flat, straight, and almost no climbing. I think the trails I ride would be perfect for a bent. On my 18lb road bike I cruise 18-20mph depending on conditions. I'm wondering how much faster i'd be on a good bent.