Hello,

  The game runs perfectly smooth except that when I drag the map with mouse it doesn't immediately follow mouse movement and then, a fraction of a second later, it instantly reaches mouse position with no animation. Just on image to another with no transition.

Then I can scroll normally the map.

If I zoom in and out the map, even slightly, the problem happens again. Just once. And if I change map scale again the problem comes back.

What can I do ?

In fact if I wait for the zoom to be complete there is no latency.

Also, it's curious that this latency never occurs when I scroll the map using keyboard arrows.