How can macOS users optimize their system's performance without relying on third-party software?

macOS is known for its sleek design and efficient performance, but over time, users may notice their system running slower or experiencing occasional lags. Many turn to third-party applications to tidy up their systems, but these can sometimes lead to new issues or privacy concerns. The question is, what are the built-in tools and settings that macOS offers for users to enhance performance and maintain system health? Exploring solutions like resource management through Activity Monitor, optimizing boot processes through System Preferences, and utilizing built-in maintenance scripts could be invaluable for users looking to streamline their macOS experience without external intervention.