Tabs 切换卡顿

[happydoop]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

2.0.0-rc.9

Environment

win10, chrome 87.0.4280.141;Vue 3

Reproduction link

https://2x.antdv.com/components/tabs-cn/

Steps to reproduce

在某个tab pane中有大量dom时（如：一个tab pane中有5个handsontable实例），此时tabs切换会 非常 卡顿！

What is expected?

即使某个pane中含有大量dom，切换也应该流畅

What is actually happening?

dom多时，切换卡顿

---

通过性能分析，发现 getTypeValue 会频繁调用 js 中的 getComputedStyle 方法导致不断reflow

仅仅是getTypeValue这一个函数调用就用了 437.6 ms！

[github-actions]

Hello @happydoop. Please provide a online reproduction by forking this link for vue2、 link for vue3 or a minimal GitHub repository. Make sure to choose the correct version.

你好 @happydoop, 我们需要你提供一个在线的重现实例以便于我们帮你排查问题。你可以通过点击 此处 for vue2、 此处 for vue3 创建一个 codesandbox 或者提供一个最小化的 GitHub 仓库。请确保选择准确的版本。

[galleonsZcc]

我也发现了这个问题，当tab-pane里有数据量超大的表格时，问题会非常明显

[github-actions]

Since the issue was labeled with Need Reproduce, but no response in 7 days. This issue will be closed. If you have any questions, you can comment and reply.

由于该 issue 被标记为需要复现信息，却 7 天未收到回应。现关闭 issue，若有任何问题，可评论回复。

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.