HK visit 4 days only, so many places to visit how to organize it to maximize time,

Of course you can finish all the places in 4 days in HK, but time will be in a rush.
The Disneyland, the Ngong Ping 360 and Tung Chung can be arranged in day one. At night, you can go to see the Aveune of Star and see the Symphony of Lights.
On day two, you can go to the Ocean Park in the early morning from Admiralty West by taking bus 629. Then in the afternoon, you can take the same bus to reach Cental and then you can reach to take the Peak Tram to visit th Peak and Madame Tussauds. Get down from the top of the peak, you can go to the night market.
On day three, you can go to shop. The shopping malls you plan to go area near the TST area except the Citygate. After shopping, you can find some places to taste the local snacks.
On the fourth, you can take the early ferry for Macau and a day visit. Then you can go to take the ferry to go back to HKIA directly.
Hope you have a nice trip to these two places.