Moving mouse over a chart instantiates interaction even though not clicking yet

[corepuncher]

On a normal device without a mouse, the user must tap to start interaction.

But if I have a mouse hooked up to my tablet, simply moving the mouse OVER the chart is causing it to interact (perform readouts, etc).

I would have expected that a click is necessary to start the interaction.

If this is not a bug, then how can I disable "hovering = immediatel interaction" and require a click? Basically, make mouse mimic a finger gesture in all aspects. Thanks.