There's a lot of mixed opinions when it comes to Kim Kardashian's performance in American Horror Story. Some viewers who are fans of hers might have been excited to see her in a different genre and thought she did a great job. But on the other hand, those who are more critical of her acting skills might have felt that she didn't quite fit into the world of American Horror Story. It also depends on the role she was given. If it was a role that played to her strengths, like her ability to draw attention, then it could have been a success in some ways. But if it required more in - depth acting, it might not have been as well - received. Overall, it's a very subjective matter.
Since I haven't witnessed Kim Kardashian's performance in American Horror Story myself, it's hard to say. However, some people might have liked it if she brought her own charm and star quality to the role. Others might have expected more from an acting perspective, given that she's more known for her reality TV presence. But without seeing it, this is all speculation.
I haven't actually seen her performance in American Horror Story, so I can't really comment on how good or bad it was.