Unless you got a very unusual boat that is in "ready to go" condition, I think you will be spending a lot of time cleaning
and re-working systems and the sail systems on the boat before you can get to "really" sail the thing. That doesn't mean you cannot go motor
sailing or "pretend sailing" with sails
up and the motor off until you get things back to "ready to go" status.
That said, sailing a big boat is like driving a bus compared to a sports car - procedures are the same but things happen a lot slower and take a lot more time. Otherwise most all the procedures are not different from small boat or medium size boat sailing.
What will take some of the time is investigating and working with the much larger sails
and control lines to learn what and how they do what they do and how much time it takes to do it safely.