Mexicans hate it!
If you check Imdb, a large percentage of 1* votes drag the average rating down. Both the US and Mexico have 3K 1* votes, but it's 75% of total from Mexicans! They rate it 3.0.
https://www.imdb.com/title/tt20221436/ratings/?ref_=tt_ov_rat
Why Mexicans find 'Emilia Perez' disrespectful - https://www.dw.com/en/emilia-perez-backlash-mexico/a-71433292
Despite the acclaim, the film has sparked harsh criticism in Mexico.
Even though the plot is set in Mexico, Audiard produced his drama in a studio near Paris. And with the exception of Adriana Paz, the cast features non-Mexican actors: Spanish trans woman Karla Sofia Gascon in the title role, and US actresses Zoe Saldana and Selena Gomez in other leading parts.
Mexican writer Jorge Volpi described it as "one of the crudest and most misleading films of the 21st century" in an op-ed for Spanish newspaper El Pais. To assume that "through a gender transition, the wild and cruel male who has ordered hundreds of murders suddenly transforms into an empathetic woman committed to the weakest is an unforgivable narrative juggling act," the author added, concluding that even if the film wins awards, it only expresses contempt for the victims.