A fair bit of the course is fire road, including the big climb, so there's the opportunity to make up time if you're on a nippier bike. You will get a bit bashed about on the singletrack sections though.
Last year I did it on a rigid SS and found that the "bridge of death" over the bombhole was genuinely quite sketchy (due to the ever-increasing size of the hole at the bottom of it) and that I couldn't always carry enough speed to get through the bombhole, especially once it started getting cut up.
On the whole I was a couple of minutes slower per lap than the previous year when I did it on a burly hardtail – some of that must have been due to the crap conditions though.