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High marker counts(in clustering) lag when zooming out #960

@AidanWelch

Description

@AidanWelch

Summary

When zooming in high amounts then zooming out on a map with thousands of markers there is significant lag as the markers re-cluster.

Expected behavior

The markers would near immediately re-cluster to the clusters appropriate for the current zoom.

Observed behavior

It seems like instead each "cluster level" is animated in order instead of immediately clustering to current zoom/cluster level. This leads to drawing and calculating for more markers than is feasible at once.

Steps to reproduce

If you can reproduce using the demo app in the project, it helps us troubleshoot faster.

  1. Distribute and cluster 20,000+ markers.
  2. Zoom in significantly.
  3. Zoom out

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triage meI really want to be triaged.type: bugError or flaw in code with unintended results or allowing sub-optimal usage patterns.

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