No amount of intimidation will ever make me speed up a pre-trip. You have to know what is covered in DOT pre-trip. I usually get the guideline book, called the Green Book. It has all DOT regulations. Know the DOT required items, and stand your ground. If someone tries rushing you, just ask them, "Which part of the Federal DOT pre-trip are you instructing me to skip?" It will be the last you hear of them rushing your during a pre-trip, or, for that matter, instructions to drive when some kind of equipment is broke.
This kind of stuff never gets past the first time it happens, if ever. Our suits know better. Our problem, is we have an ever growing number of feeder drivers who just don't concern themselves with proper pre-trips, because they are in such a hurry. And not because management pushes them...they only do it out of sheer stupidity.