[Bug Report][3.6.8] VTreeview slow performance on expand about vuetify HOT 8 OPEN

Hi,

just want to let you know that even after upgrading to vuetify 3.6.9 the performance of the treeview is still quite slow with a big amount of items. I assume thats why you re-opened the issue @yuwu9145 ?

Any ideas on the timeline for fixing this issue?

Thank you for working on this btw :)

The remaining latency is from vuejs/babel-plugin-jsx#712

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The equivalent list example has 200 list groups not 200 lists https://play.vuetifyjs.com/#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

Still faster though, treeview seems to be rerendering every node at least twice.

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Yeah, there are unnecessary renderings

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+1 on this issue. It is also a huge problem for me. I am currently trying to mitigate it by loading all items initially with an empty children array and then using the load-children prop to "fill" the children with the remaining items by resolving a fake Promise. It's a rather hacky workaround and not yet fully working for me as I need it but the only way to get a decent speed.

Any ideas on timeline for resolving this issue?

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+1

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Concluded two redundant renderings, on every open event:

• Treeview re-renders, caused by v-model:opened change
• Every Treeview-Item re-renders, caused by vuejs/babel-plugin-jsx#712

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Hi,
just want to let you know that even after upgrading to vuetify 3.6.9 the performance of the treeview is still quite slow with a big amount of items. I assume thats why you re-opened the issue @yuwu9145 ?
Any ideas on the timeline for fixing this issue?

Thank you for working on this btw :)

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https://play.vuetifyjs.com/#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