displaySearchResults inserted up to 100 results one at a time via
addItem({ scroll: true, highlight: true }) — each insert ran two DOM
scans (duplicate guard + row lookup), a smooth scrollIntoView and a
highlight pulse, so every live-search keystroke triggered ~100 competing
smooth-scrolls and O(n²) container scans.
Add filesView.renderItems(): a single component.render() pass (one
DocumentFragment, zero per-item scans/scrolls). addItem keeps the
scroll/highlight affordances for its documented purpose — optimistic
single-item inserts after upload/create.
https://claude.ai/code/session_01Dp3oWon5GBMVn4j3QXZdgx
Claude
ca698f73d1