Magical Secrets can only draw spells from a spell list if the Bard’s class level is of a qualifying level capable of casting the spell as of the base class. Thus a 5th level Paladin spell could be taken by a 17th level Bard, but no sooner. A Bard could take a 4th level Ranger spell beginning at 13th level.

Should Bard’s be granted automatic proficiency in Performance? A notoriously weak skill that relies heavily on RP and DM response.

Seems that they should. Performance is very hard to break or abuse