Most women tend to hold the pistol steady with their right hand while trying to pull the slide back with their left hand. This provides one hand pull force only. They also usually tend to naturally hold it out away from themselves while doing this which is not optimal.
If the pistol is tucked in close with the right forearm against the body and the bore oriented toward the 10:00 position, and the right hand is pushed toward 10:00 while the left hand, with an overhand grip on the slide, is pushed toward 4:00 this provides a push/push force. The women I have shown this method find it much easier to rack the slide.

The other solution is for them to buy a Walther.


Let's Go Brandon! FJB