Of course.
Lots of people tend to push shots leftward with Glocks, especially when they are shooting multiple shots in rapid succession.
It's not really your grip, it's more likely your trigger finger.
Clear your gun, then dry-fire.
Then practice shooting multiple shots WITHOUT CYCLING THE SLIDE:
Pay careful attention to the sights. You will likely notice that at the very last part of the trigger pull, right after the point where the trigger would have broken, you get a slight leftward push of the front sight.
The only way I can combat this on a Glock is to use less trigger finger. I have the very tip of my trigger finger on the trigger just enough to disengage the trigger button on the Glock and then I don't get the lefty push. You can try the Pat Macnamara version where you use a lot more trigger finger, but for me that makes the problem exponentially worse. Point being experiment with trigger finger location in dryfire and live fire to see what works best for clearing the problem up for you.