To help newcomers understand time requirements (and without specifically advertising anyone) one of the main agents in the Đà Nẵng/Hội An area has adjusted their BUS schedule to make the visa run to & from Laos as fast as possible:
They now leave Đà Nẵng (Nam Việt Á) at 5:45 AM and return by about 3 PM.
9 hours & 15 minutes sounds very long, but previous schedules were about 11 hours total.
They cut out a restaurant stop and substituted a grocery store snack stop, and still manage some toilet/smoke breaks.
Pickup in Hội An is 5:15 AM with return at about 3:30 PM: approximately 10 hours & 15 minutes; an improvement over previous schedules that sometimes totalled 12 hours or longer
Many people who tried to stay here on 30 day visas couldn't stand those visa runs once a month, so they've left Việt Nam.
Since 90 day visas are now available, the strain shouldn't be as bad on people having to do a Visa run only once every 3 months.
A number of my friends here have been opting to take relatively in-expensive flights nonstop to Thailand.
The smart ones (IMO) are choosing to do three-day mini vacations there before turning around and returning to VN.
The old saying "forewarned is forearmed" hopefully applies here.
The fewer surprises you experience on arrival, the better your experience can be.
It's definitely possible to go faster by private car or motorbike.