heheh
They do say there's a limit, tho it's not hard-defined. A site can have 50k members and 2 million posts and run fine on a good server. One with 100 members and 1,000 posts will run badly on a poorly configured shared server - it just takes a good amount of I/O to run through the flat files and if your server isn't up to it, well... it's a hardware problem.
Whatever modifications you add, you simply gotta turn the php accelerator on - there's no reason to not do it, it helps a lot. A friend of mine runs a ubb that gets a couple million + pageviews per month, he didn't know why it ran slowly... I convinced him to at least start with turning the accelerator on
When you post threads like this, it would make more sense to include your server hardware/software stats... if you say it's a shared raq, we're gonna all chuckle
