Website wont load content properly on some computers. Terrible.

Hello,

I thought my website was running fine, since it loads properly from my end, on all browsers.

I was surprised to find out that, big parts of the website dont show up when I accessed the page from the computer of my father, and it had the same problems on the computer of an acquaintance, all of which use macbooks (I myself do, as well)

More specific about the issue; On the homepage, the browser/computer will load the layerslider and a “glitchy” gallery which you have to scroll down to see, and the menu. Everything else will not show up, the text which is supposed to be under the layerslider shows up as a big white bugged box.

Unfortunately, I dont have any screenshots of the issue, and cant get it till I meet up with my father again to test the website on his computer.

I need to get this fixed ASAP, we have invested large amounts of money on marketing and had a lot of website traffic recently, I dont want to think about how many potential customers we have lost because Enfold theme cant do its job and load the page properly.

Thanks in advance for your help,
Regards,
NikoArq