在V5.2.8版本中，实现折线图的实时更新，效果比在V3.5.1中要差

### 问题描述

V3示例：https://antv-2018.alipay.com/zh-cn/g2/3.x/demo/other/line-realtime.html#
对其进行修改后在V5中进行实现，效果不理想。
希望能针对实时数据的渲染做部分优化

### 重现链接

_No response_

### 重现步骤

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### 预期行为

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### 平台

- 操作系统: [macOS, Windows, Linux, React Native ...]
- 网页浏览器: [Google Chrome, Safari, Firefox]

### 屏幕截图或视频（可选）

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### 补充说明（可选）

_No response_

Start by comparing the linked V3 real-time line example with the reported V5.2.8 behavior and locate the corresponding V5 real-time rendering entry point. Reproduce the difference in a minimal example, then measure rendering performance; done means real-time updates perform comparably to the V3 reference.

Written by the indexing model from the issue text.