User blog comment:Adam Carey/Making Ads Better: What We've Done So Far/@comment-4403232-20170120045134

I'm really hoping you guys execute on lowering the performance hit of those advertisements. I've managed to find an old screenshot of mine where I was showing someone the performance hit one Wikia tab with advertisements caused by having Task Manager record my CPU and RAM before and after I closed the tab.

http://imgur.com/a/qT8U8 (Yes that's actually Windows 7, I just preferred the Classic theme in it)

After I closed that single tab, my RAM usage went down by around a third, and my CPU usage went down immensely.

I haven't tested this recently, so maybe it's already started to improve, but hopefully users such as myself will no longer have experiences like that.