I agree with fjs.
We usually travel with different shoes than we walk the parks in. When we arrive in the morning, typically we have all the stuff we need for the parks ready in a carry-on. We change our shoes, jackets, whatever and check-in. As soon as we check in, then it’s off to the parks.
Last May, our flight arrived early, so we were off airport property by about 9:30am. We checked in around 10am and we were at the Epcot gate by 10:45.
We had a LOT of fun that day. :mickey: