vuetifyjs / vuetifyjs/vuetify

[Bug Report][3.6.8] VTreeview slow performance on expand

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#19,919 55 comments 8 reactions 2 assignees View on GitHub

@J-Sek is already working on this.

Since Sep 29, 2025.

C: VTreeview T: bug upstream
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Description

Environment

Vuetify Version: 3.6.8
Vue Version: 3.4.27
Browsers: Chrome 125.0.0.0
OS: Mac OS 10.15.7

Steps to reproduce
  1. Load reproduction link
  2. Expand a node
Expected Behavior

Should be as fast as using VList:
https://play.vuetifyjs.com/#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

Actual Behavior

Slow and frozen

Reproduction Link

https://play.vuetifyjs.com/#...

Contributor guide

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First steps

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Assessment

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