Website horribly slow, only on computer

Hi, since today (worked fine yesterday) the website is horribly slow on my computer, and that on any browser.

It's not a problem with my internet, since I can use the site just fine on my phone (from which I'm writing now), and all other websites are working fine, except the images on poe.ninja, which come from web.poecdn ...

I tried updating windows, Nvidia driver, changing dns, but I can't seem to find what's causing this.

Any idea how to fix it ? Not being able to use trade site is pretty annoying