3.6.3版本 官网折线图平移的代码在本地运行出现拖动时坐标点抖动

- [x] I have searched the [issues](https://github.com/antvis/f2/issues) of this repository and believe that this is not a duplicate.

### Reproduction link
[https://f2.antv.vision/zh/examples/line/basic#pan](https://f2.antv.vision/zh/examples/line/basic#pan)

### Steps to reproduce
使用3.6.3版本的F2然后使用官网提供的折线图平移demo然后拖动

### What is expected?
坐标点不抖动

### What is actually happening?
坐标点抖动

| Environment | Info |
|---|---|
| f2 | 3.6.3 |
| System | windows |
| Browser | Google Chrome 81.0.4044.92 |

---
切换到3.5.0版本发现不抖动了

Start with the linked line-chart pan demo and reproduce the coordinate-point jitter using F2 3.6.3 in Chrome on Windows. Compare the same interaction with F2 3.5.0, then trace the pan behavior from the demo entry point into the chart interaction code. Done means dragging no longer makes the points visibly jitter in the affected demo.

Written by the indexing model from the issue text.