Psychopathy is a specific personality disorder characterized by certain traits, such as a lack of empathy, shallow emotions, manipulativeness, and impulsivity. It is essential to remember that diagnosing a fictional character with a mental disorder is a complex and nuanced process that requires a comprehensive understanding of the character's behavior and motives.
While Lalo exhibits certain traits that might overlap with some aspects of psychopathy, it is ultimately up to the show's creators and writers to define and portray the character's psychological makeup. As the show continued beyond my last update, I recommend consulting more recent sources or watching the series to see how Lalo's character develops and if any further insights into his psychological profile are provided.