In my experience, titanium both heats up and cools down very quickly. It's a poor heat conductor because the heating tends to stay localised at the heat source - resulting in the base of the pot, over the flame, being much hotter than the rest of the base or sides - hence the hotspot. Wide bottom titanium pots exhibit this trait worse than tall/ narrow pots - as the flame on typical camp stoves is relatively narrow.
Perversely, tall narrow ali or SS pots suffer from the same problem, because, although the heat transfer is more even across the base, the sides remain relatively cool - resulting in burning/ sticking at the base of the pot. Zebra billys are great pots but, in my view, only when cooking over (not on) the fire - they stick like crazy when placed directly on a hot stove.
My titanium canteen cup is a winner because it has all the benefits of titanium (light, strong and doesn't taint the food/ water) whilst the design addresses the shortcomings of titanium. The titanium is very thick, the base of the cup is narrow (catching all the flame) and it widens as you get up to the lip, providing decent volume.