Hi all,
I'm a cyclocross-curious MTB rider. I see cyclox bikes are much lighter than MTB for the same price tag and can be very useful in cycling events (if there's no limitation on the bike type ). Unfortunately, in my area there are no cyclox events, nor any owner of a cyclox bike, just MTB and road race bikes. So I can't try it and decide.

I have some questions about it:

1. How fast are cyclocross bikes on asphalt in absolute figures and compared to MTB on semi-slicks?
2. Is it a good idea to use cyclocross both on trails for sport (I take part in bike orienteering races), and on road for training and just riding?
3. Is road handlebar better than the flat MTB bar for the wrists? Cyclocross owners, how much and fast can you ride on dirt or gravel roads?
4. What is the top speed that the gears are adjusted to? In my MTB, it's 44km/h with 90 rpm cadence. I'd be happy with 50-55 km/h.
5. I'm concerned about gears. The steepest climb on dirt, 10%, I ride in F:22/R:24. Cyclocrosses that I see in e-shops have bigger front chainrings. Is there anything I can do about this?

the cranks are 175mm, wheels are 26".

bigger wheels: 28"/26"=1.08
bigger front chainring: 30T/22T=1.36
28/26*30/22=1.47
1.47*24=35.24 teeth on the biggest rear cog to make it equal to the MTB gear ratio. Even if I deduce the gear ratio by the weight gain ratio, it still is 60kg me + 8 kg / 60+13 * 35.24 = 32.83 teeth.

Looks like the bikes that are sold in the internets don't have that low gears. I've found a long-cage Campagnolo derailleur, but it's compatible with 29T cog at most, and has only 27T capacity. What can be done?