Avoid Hwy 50 if you're in a hurry. It's not a freeway for most of the distance you would be driving AND it's far north of the Vistana resort. Take 417 east to the 528 east.........I think the exit you will need is to I-95 NORTH, but I could be wrong about this one; ther ewill be a sign to direct you.
Both the 417 and the 528 are toll roads (417 - $2 each way, 528 - ~ $1.25 or $1.50 each way), so make sure you have cash ready. There will be 2 toll booths on the 417 @ $1.00 each and 1 toll both on the 528, not long after you merge from the 417. Hope this helps.