There are some rare, limited "production" bents that are fast but they are not really available, such as Morciglio, Troytec, and Zockra.
On my recumbent, my 230 pound bike and body can climb a 10% hill with 340 watts at 7 mph whereas 227 pound upright and body total system weight can climb the same hill at closer to 8 mph at a higher wattage. 17 mph on a 10% grade (this is not steep where I live) ain't happening from these old legs. On the flats, there is no contest. On a hot humid day, I need around 155 watts for 24 mph and 275 watts for 30 mph......this requires total attention to the rider, too.....like skinsuit, helmet, and everything perfect; otherwise, it takes me more around 190 watts and 340 watts for those speeds.
The V20 and M5 CHR are the two fastests in my opinion. I did a long ride with a Pelosi recumbent, the rider could slightly outclimb me but I was faster on the flats but pretty close although such comparisions are pretty meaningless.