yes, just like the Acela between NY and Boston, even though there are only 2 stops in CT, outdated infrastructure, sharp curves, and shared tracks create a bottleneck.
Am I alone hoping to be able to take a fast train between DC and Boston (8 hours' drive) or DC to Chicago (11 hours' drive). Some fast trains could cover those distances in 3 to 4 hours.
Edit: Actually, even faster than that.
The fastest, actively operating train in the world is the Shanghai Maglev, which reaches top commercial speeds of 431 km/h (268 mph) using magnetic levitation. For conventional wheeled trains, the CR400 Fuxing Hao in China is the fastest, operating at 350 km/h (220 mph). Japan's L0 Series Maglev holds the all-time speed record at 603 km/h (375 mph)