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Optimize Performance for Large Section Sets #33

@bae080311

Description

@bae080311

Summary

When dealing with a large number of sections (e.g., 50+), the current IntersectionObserver setup might lead to performance bottlenecks, especially during initial load or rapid scrolling.

Proposed Solution

Explore strategies like debouncing IntersectionObserver callbacks, virtualizing observers for off-screen sections, or optimizing internal data structures for faster lookups. Potentially, use a single observer for all sections with threshold adjustments.

Acceptance Criteria

  • No noticeable jank or slowdown when scrolling quickly through 100 sections.
  • CPU usage remains low during active scrolling with many sections.
  • Memory footprint for managing observers is efficient.

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