It seems to me that it is slow during the busy times of the day; the times where everyone is one. However, and I know it has been mentioned before, many of the users logged on aren't actually reading or posting. Therefore, slowing down the site. I believe the length of time that an inactive user can stay logged on was just increase, which means a longer period of slow time.
Not to be rude, but do use all a favor and log off when you are done, because you will remained logged in as long as you are on the Internet. It only takes 5 seconds to retype your username and password to log back in.
Besides, the most congested time of the day is about 9:30 a.m. You guys mean to tell me you get paid for 8 hours and are only busy the first half an hour. 🙂