Hi team, 

I have created a website with the below domain 

Www.pressurewashaustralia.com.au

When someone goes into the page for the first time the page loads up parts of the website but other parts don't load for a significant time. I thought it might have been the image sizes so they have all been reduced to below 500kbs. Im wondering if there is a setting that would be causing this? After the first time using the website it loads perfectly every time but that first time its sort of half loading. Ive run various tests on website loading speed and they are coming back fine but that doesnt seem to be the user experience 

Any direction would be great! 

Thanks