For me vB3 on my server is snappy quick (0.5 seconds) , xenForo on this server reasonable (1.0 seconds) and xenForo on my server a bit disappointing (closer to 2 seconds). I reckon my visitors are going to notice and will ask why the heck I want to change over.
Is this a typical experience or am I doing something wrong?
I'm running a windows 2008 dedicated server with a good host on fast cgi with next to no load. I'd rather be running linix but have something else on there that requires windows so would need another server if linux is necessary for xenforo.