Trust you are flying Westjet from Toronto to Orlando. If air Canada you will have to pick up luggage and change terminals and you will be rushed. Connecting flights have express entry through customs. You will miss most of the lines. Biggest bummer will be that you can't get duty free coming home as you will have to buy your duty free in the US, but cannot take it through security in Toronto given the liquids policy. If it is a westjet connection, you will have plenty of time!