Just to be sure, are you seeing something like this https://youtu.be/WNhOP83jB4Y. Your site loads slow especially in slow or throttled internet connection even on desktop because your images are very large. One of your image, fengshui1.jpg, is 3 MB which is very huge to be used for web.
That is why you're only seeing fragments loaded one at a time.
You should optimize your images. Please see our Performance article for more details.