Dispassionately

[Oralee]

dis·pas·sion·ate
disˈpaSH(ə)nət
adjective
not influenced by strong emotion, and so able to be rational and impartial.
synonyms: unemotional, emotionless, impassive, cool, calm, calm, cool, and collected, [unruffled], [unperturbed], composed, self-possessed, self-controlled, [unexcitable]

[Renato]

In an unemotional, rational, and impartial manner.

[Dave Paprocki]

in a way that is not influenced by emotions: