Some advice from a local. Take I-75 to the FL Turnpike. Get off exit 288 and proceed south on Route 27. This will take you on a scenic route through Clermont. Not to worry, it's a 4 lane divided highway with for the most part a 65 mph/105 kph speed limit. There's very little traffic, and although there are some lights, there aren't many. You'll pass a couple Publix grocery stores, stop for bottled water and snacks. They have good selection and prices, and aren't crowded with tourists.
Just south of Route 50 watch your speed, the cops love to sit in a couple of parking lots in the area with radar in the reduced speed zone.
You'll take Route 27 South for about 30 miles, the exit ramp for Route 192 is clearly marked with not only the route name, but it also says "Disney World". be cautious on the ramp, it's a harder turn than it would appear.
Follow 192 east for about 5 miles, a bit after mile marker 5 (Big purple "5" sign on lightpole) you'll be making a left turn onto Sherbeth. Follow Sherbeth to the traffic light and make a laft if you are headed to AKL, right to go anywhere else on property.
Timewise it will save you during rush hour, it's about the same otherwise, but it will save a couple dollars in tolls and keep you off of I-4, which is terrible any time of the day or night.
Anne