The Hilton is shown as a 20 minute walk. But checking out the area, There are no sidewalks visible in the port area.
These are from Google maps.
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I like to recommend Dania Beach if you are without a car. Pick a hotel you like that offers complimentary airport shuttle (or use rideshare / taxi) and you can walk to a choice of restaurants for dinner (look at a map to see hotels like Hilton Garden Inn, Hyatt Place and more that are in this area). The morning ride to the port is so much closer than Orlando to PC. I hope it works out great for you.
Even a stay at Ft Lauderdale Beach, itself, or the above-mentioned Las Olas give you great options.