Although there have been several Cheetahs in DC Comics history, Barbara Minerva is arguably the most famous, and her abilities include enhanced strength, speed and agility, as well as heightened senses and razor-sharp fangs and claws.
Although primarily known for her work in comedy, Kristen Wiig does have experience in more dramatic roles, and Wonder Woman 1984 sees her not just delving into the superhero movie genre, but also playing the main villain.
Given Wonder Woman’s power levels and the fact that she took down Ares in her origin story, one would imagine that like her comic book counterpart, Wiig’s Barbara gains her powers from a magical/mythical source, like the plant god Urzkartaga.
Incredibles 2 - Every Easter Egg and Pixar Reference