I have 2 PCs, a desktop and a laptop... Ever since I got the desktop in Feb 2015, i've been noticing internet speed issues, but always too lazy to deal with it. Finally i'm tired of it now lol. So the actual physical internet connection isn't the issue, I get anywhere between 50-200Mbps over wifi on both, and the key thing is once I am connected to a website things work fine, and things like downloads work fine once i connect to the download server. but on the desktop it just takes very very long to open up a webpage. I've noticed this across multiple OSes, from Win7 to 8.1 and 10, and i've noticed it while connected via ethernet to a wireless bridge, and while using a usb wifi adaptor. And to keep my sanity I connected the laptop to the ethernet-wifi bridge (using a usb3 to GigE adaptor, lol) and it still opened lightning quick compared to the desktop, so the dlink wifi-ethernet bridge isn't the problem. I put a video of the desktop and laptop side by side opening the same webpages to show the issue: Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

The desktop has the following specs:
Intel i5-4690K
120GB Samsung 850 Evo SSD
500GB WD Black HDD
Gigabit Ethernet connected to DLINK DAP-1650 Wireless ethernet bridge which runs over WiFi AC 867Mbps to my main router.
Nvidia GeForce GTX 970
Gigabyte Z97-DS3H mobo
750W CORSAIR psu.
Windows 8.1 Pro (but have noticed the issue on Win7 ultimate and Win10 Pro)
The laptop is an Early 2015 Dell Inspiron 7548 series with
250GB 850 Evo SSD
Intel 7265 AC wifi
Windows 10 Pro
Both computers are running the latest Chrome x64 edition. Oh, and the problem occurs with Firefox too. I tried switching to it for a few weeks to see if it would make a difference but it did not.

Any help would be appreciated :)

Oh, and my connection is 250Mbps so I don't think thats an issue either