Kind regards, Wim
Not to keep harping, but manual focus cannot speed up this lens because the 85L uses a focus by wire design. When you turn the manual ring that tells the motor to move the optics. AF or MF this lens is focussed by the motor.
I love the 85L, but it costs a lot more money than the 85/1.8 which is a good performer and flexible in application. I would not casually recommend the 85L to someone who hasn't at least considered the other cheaper primes in the range.