I have the same issue and many times my computer kicks out a script error as the script is too large to continue running the page of the thread I am trying to view.
I also wonder about the ads, as currently on this page I am posting, there are 3 separate ads for the Marriott Rewards Visa Card. Two say the same exact thing and the header just has a different destination than the other 2.
Before the latest upgrade the ads would fit into posts' margins. Now, they add to the size of the page. I don't mind the ads as they pay for us FT's to read and post without any subscription fees, but to me, it's an overload if all of them say the same thing.