What are the differences between FlexiZone AF and Quick Mode in terms of their functionality and performance?

FlexiZone AF allows for more precise focusing on a specific area of the frame, while Quick Mode quickly focuses on the subject in the frame. FlexiZone AF offers better control over focus points, while Quick Mode is faster for capturing moving subjects. Overall, FlexiZone AF is more versatile but may require more time to set up, while Quick Mode is better for fast-paced shooting situations.