what distance was this? Try having looser fireing hand and use more pressure with support hand on your grip. Also pull the trigger ridiculously slow by adding tiny bits of extra pressure until the gun fires (it could take 10 seconds for it to fire) then you should be hitting right where you want to be.
I am guessing your issue is with trigger control so you can test it putting a coin on front site post and dry fire to see if coin stays on sight or falls off.
Also you might be anticipating. If you have some snap caps and a hat bring them to the range next time you go. put 8 rounds and 2 snap caps (assuming magazine holds 10 rounds) in your hat, Close your eyes and mix them up in hat and load magazine without looking so you dont know where in the magazine the snap caps are. Then when you put magazine in pistol and shoot, your pistol shouldn't move when you get to the snap caps.