Totally do-able, but let the server know that you need the check and want to square up quickly.
Sometimes, I think the wait staff is concerned about you feeling like they're rushing you, but meanwhile, they're not moving fast enough to suit your schedule.
I have read many reports over the years from guests who felt rushed at Disney's restaurants. That has not been something I've experienced, even one time as I recall. Just the opposite...I've sat there waiting to pay and got hung up almost as long to settle the check as it took to eat the meal.