The items that the business analyst documented are non-functional requirements. Non-functional requirements are statements that describe how a system or solution should perform, behave, or appear, rather than what it should do or provide. Non-functional requirements can include aspects such as usability, reliability, security, availability, scalability, etc. Non-functional requirements help to ensure that the system or solution meets the quality standards and expectations of the stakeholders or users. The items that the business analyst documented are non-functional requirements because they specify how Sales Cloud should perform (portal pages should load within 2 seconds) and behave (all logins must use multi-factor authentication). References:
https://trailhead.salesforce.com/content/learn/modules/salesforce-business-analyst-certification-prep/requirement