Ohhh, searches.
Yeah, searches are computationally intensive, which is why there is a time limit on how often they can be done by each user. I am not sure if I feel comfortable to lower this number as searching increases the CPU load of the machine the board is hosted on.
Now it all makes sense. You hit the "New Posts" button, so you are really not browsing, you are searching.
Not sure if this is any help, but here is what I do when I get to QCDN.
I open each forum that has new posts into a new browser window. Then in the main browser that shows just
www.qcdn.org I hit "Mark Forums Read".
Then I go through posts in the individual forums. I close the forum browser windows as I am done with them, selecting "Mark This Forum As Read" from the Forum Tools. Then I refresh the main window and it will show which forums have new posts, and I go from there as needed.
I will look into lowering the time between searches, but I will have to read up on that and see how other forums with similar user loads handle it. Don't want to lower it right away just to end up with a slow-down of sorts.