It depends on the context:
* "Too perfect" as an exaggeration: You can use it to emphasize that something is *so* perfect it's almost unbelievable or suspicious. For example, "Her life seemed too perfect, like it was all staged."
* "Too perfect" as a negative: It can also imply that something is *overly* perfect and therefore undesirable. For example, "The movie was too perfect, it felt formulaic."
More precise alternatives:
* "Perfectly" or "flawlessly" if you want to focus on the perfection.
* "Unnaturally perfect" or "suspiciously perfect" if you want to convey a sense of doubt.
* "Overly perfect" or "too polished" if you want to emphasize the negative.
Ultimately, the best choice depends on the specific meaning you want to convey.