X Axis Drift

Is there an easy way to determine why this drifted on the x axis? My theory is the 1st cut is too deep and then secondly the speed of the F(xy) or F9z) is to high on the tool in estlcam. Was happening very slightly in the plywood 3/4 cut vs the 3/4 cut on the oak.


Because 61mm/s is about 7X too fast.