I am wonderimng if you checked your ball speed on a monitor? I suspect that yout timing and tempo will need to be re-learned if your speed is that much higher when you actually strike balls.
Long time ago when I took some playing lessons from an old school instructor, at the range he told me there are 3 swings other than putting. 1-Practice swing speed 2- playing speed swing, and the 3-crush it swing speed. I can only guess that your training at the crush it swing speed swing to increase your playing swing speed.