Sensor processed horizontal movement is not the same for two mice properly

from processing all accustomed top, unfortunately, there seems to be problems with the firmware. If you try to slow to follow the mouse pointer of a horizontal line, you will notice that the mouse constantly drifts up or down. The falls on immediately, but by just clicking on the smaller buttons fast times on the wrong button. I would forgive even a cheap mouse, Logitech fortiori.

Tested with two mice on three different PCs on three different surfaces, which significantly cheaper mice cope perfectly.