When Rantzer knocks the hyper-speeded-up Leora against the wall she drops her gun, which falls to the ground. It should have stopped in mid-air as soon as she let go of it, like the wrench Rantzer dropped earlier.
When Rantzer walks past the guards, motionless because he is moving so much faster, traffic can be seen reflected in the front window of the bank moving at normal speed.