I have seen otherwise, sorry your site has problems. I know what I see and what I have seen. Every host is different, there are so many variables to hosting it's not funny. Sometimes it can be a brand of memory, or mfr of the hard disk, or just the backbone in your area.
And don't get me started on chipsets.. Whatever works for you is fine. This thread seems pointless now, since you seem to have made up your mind and we're simply wasting our time