First thing I’d do is have someone else shoot it.
Remember that the 92 has a palm swell, the M9A3 is a straight grip… just like a 1911.
You’ve gotten used to shooting a 1911 grip and M9A3 mimicks that.
I find the same thing happens to me with a G17 and all due to the ergo of the swell in that grip.
The G19 I shoot just fine because of where the swell is in my hand.
Hand that 92 to a Glock shooter and see how they group it.