The speed of the FDL is what makes it so good at staying close to your opponent and out of their line of fire. Unlike the Vulture you can't really keep it in the blue 100% of the time and expect great success. Constantly adjusting your throttle and using your maneuvering thrusters is helpful for mastering the FDL.
I agree. But because it's faster the speed controller is more sensitive to any adjustments. So the FDL is a better ship if you are a better pilot. I'm not yet good enough to get the best out of an FDL unfortunately, but I am improving.
It probably doesn't help that I have moved to using two joysticks and I control the thrust with the hat on the second joystick. Unlike when I used a single joystick, I have no tactile sense as to what my thrust is set to.