Cursor on timeseries graphs does not move fluidly when on top of the line being plotted

[sync-by-unito[bot]]

See video. This is more noticeable for longer time periods because it's harder for the mouse to avoid the plotted line in the timeseries.

1. Go to px/node for any node
2. Switch time to -1h
3. On the CPU graph, move the cursor across the chart, notice it doesn't move when it's on top of the line being plotted.

(See video for full experience)

┆Issue is synchronized with this Jira Bug by Unito ┆Attachments: Screen Recording 2022-01-11 at 1.46.47 PM.mov