Both methods callself.with_segments() unconditionally. This can be skipped if theother argument is already an instance ofPurePath, and no further (deprecated) positional arguments are given.

Also,relative_to() can inline the core of theis_relative_to() check to avoid the type/deprecated args checks.

Linked PRs

• GH-111429: Speed uppathlib.PurePath.[is_]relative_to() #111431