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Description
Should this be an RFC?
- This is not a substantial change
Which package is this a feature request for?
Virtualizer (@lit-labs/virtualizer)
Description
We're currently migrating a data table component from iron-list to lit-virtualizer, and we've run into some performance issues.
With iron-list, rendering appears to be debounced or throttled—when we scroll quickly, it doesn't immediately render the items, but catches up after a short delay. This behavior avoids blocking the UI and keeps the scrolling smooth.
However, with lit-virtualizer, it seems to try to render every
item immediately, even while scrolling fast. This results in noticeable input lag and UI freeze during faster scroll on large datasets.
lit-playground (2).zip
playground example
Alternatives and Workarounds
We haven’t found a workaround for this.
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