Not getting internet speeds i am paying for

[supertiki2802]

I am paying for 500 mbps download speed, and according to speedtest.net, I am getting roughly 50-90 mbps. We have already contacted Wow, our ISP, and they say that "I have a slow computer", and they are getting full speeds. I am connected using a cat5e Ethernet cable, and I highly doubt that the reason for the slow speeds is my computer. Is there a reason that my computer would not be able to accept speeds higher than 90mbps? In my network settings, it says that my Ethernet speeds can be up to 1.0gbps

 

[kep55]

Are you sure you're even getting the speed claimed by the ISP? Frontier for one claims between 6 and 12Mbps for ADSL but you're lucky if you get an actual 2.75Mbps. ISPs are good at deceptive trade practices by saying "up to X Mbps" but in reality only providing a fraction of that speed.