For go fast, a short wheel base(swb), lightweight, aerodynamic, bent is your ride of choice. Once your bent legs get developed, you should be able to hold your own with most roadies. Developing the muscles needed for a swb bent will take much longer than for a lwb. The EZ-1 is a long wheel base(lwb)recumbent and a good one for morphing from an upright. But not a fast ride.

Check out this thread. I ride a lwb Tour Easy and adusted the seat position for leg extension to the standard for an upright. Not sure if this holds for a swb. Seems like it would.