Cheetah are extremely anxious animals, most other felines are very "lazy" animals but cheetah are active. Their hunting strategy is an outlier in felines, they don't stalk and surprise, they outrun their prey.

Another issue is that even tho they're more tame than other cats including the Serval they still can pretty much kill you. Tamed cheetah don't usually harm their owners but there have been catastrophic incidents with kids.