i've never had any failure to feeds in mine, my dads, or my cousins LCP. did you try polishing the feed ramp?
the gun i was most displeased with was a beretta PX4 storm that my sister bought. the trigger was all wrong. (ive had sling shots with less resistence and length of travel) the firing pin hit close to the edge of the primer, if didn't fit the hand, it was heavy, it was thick, she sold it a few months after buying it.