Developing Weweb: VueJs Performance optimization on a large webapp
summary
Weweb is a no‑code Vue app with thousands of interactive components and the talk focuses on runtime smoothness not load time. It shows measurable fixes: replace layout-thrashing getBoundingClientRect loops with ResizeObserver to remove seconds of purple rendering, use untrack and a lazyRef pattern to stop needless dependencies, share heavy computations with a detached effectScope so one calculation serves many instances, and use v-memo or child/component splitting — these changes cut re-renders dramatically and actually work at scale.
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