The main page has more graphics, and so it loads a bit slower than before.

However, to counterbalance that, the table of contents itself loads in a separate frame. When you first go to a board the total load time is the sum of the load time of the main page plus the load time of the TOC. In fact, they're deliberately sequenced to avoid synchronization problems.

Thereafter, if you reload the TOC by clicking the Reload button bottom left, or it reloads after you post, or you click "Table of contents" in a message, the load time is only the time to load the TOC.

So, when you talk about load time, you should keep in mind that there's an apple load time and an orange load time.