Could you take a look at http://stonecoquarries.com/ as the Homepage slider is very slow to load. There are 3 images, each one is 100Kb or less in size. I have deactivated all plugins which didn’t make a difference.
Unfortunately, that doesn’t make a difference. We have a different website also on the same hosting server, with similar sized images, but using the Organizing Pro theme, and it loads up nice and fast. http://dubbotilttrayservices.com.au
I’ll try creating a staging site and load up a different theme and see if the homepage slider speeds up.