There is a difference between the main news page and the forums.
IPB is not fast and we can't do much about it. The main page is optimized and should be very fast (when IPB isn't slowing the whole site down, no social media and ads disabled)
The forums is most definitely the slowest part of the website, I run with NoScript (Neowin Whitelisted) and Ghostery (which is not whitelisted cause I want it to block social media links and other things), the main site works fine. But pretty much every day there is a point where I hit refresh on a Neowin Forum tab, change to other tabs to read things on other sites, then later switch back to the neowin forum tab. When it happens I easily have to wait 10-20 seconds for the forum tab to fully load.