Spread cream cheese on both sides of bread slices. Prick each bread slice 3 to 4 times with a fork. Alternately layer bread slices with peaches in slow cooker. Sprinkle chopped pecans over peaches, if desired. Beat eggs in a bowl. Add milk, maple syrup, butter, cinnamon, vanilla and salt. Whisk together. Pour egg mixture over bread. Cook on high 2 to 3 hours, until egg mixture is set. Serve with additional maple syrup, if desired.