I was trying to juggle two different needs--one, the problem of speed of loading, and the other the desire to keep most or all of the current posts on the first page. I think a lot of people don't even know there is a second page, and if you only come here once a day (or less often) you will find that the new messages to threads are into the second page--or even the third. That was why I moved it back to 60.
Now I have a fairly quick machine, but am still saddled with dial up access which is really the bottle neck and I don't find it a problem for viewing, so I am wondering what problems you are experiencing.
I do have my viewing choice set at expanded threads (left corner of the top dark blue bar--if it shows +, click on it so it shows - ) which I prefer but which does slow down loading. Still, I don't find it a problem.
I also have my preferences set to use the mark icon ( go to user_menu athe the top and click on "preferences" at the left ) and then click the mark icon before I leave which resets the new posts, but that should not make any difference. But that way when I enter the forum I only scan down as far as the new posts, and then read from the bottommost new post up. (Any newer posts that are added after I enter the forum are always posted at the top anyway).