How much time it takes to go to trick eye museum from Royal view hotel and back?

Generally speaking, the duration is 90 to 100 mins for the single trip.
From the hotel, take bus no.96C at Opposite Ting Kau Villa, Castle Peak Road - Ting Kau, get off at Tsuen Wan Station (Sai Lau Kok Road) GMB Terminus. Then take Tsuen Wan Line to Lai King Station and Tung Chung Line to HK Station - F. After that, take bus no.1 from Central (HK Station Public Transport Interchange) to The Peak( Public Transport Terminus). Then walk to the museum directly. You can use 2 hours to tour around this museum.