In trying to diagnose performance issues I've noticed something slightly strange. The very first load of XF on my test board can take a LONG time, e.g. 60 seconds+. The next load takes 0.2 seconds. We have APC running and I wondered if we have something configured wrong for it to take that long. As soon as everything is loaded into cache it's a lot quicker but once the next day (once the cache has expired, etc) then the first load is very slow again.