Caitlyn's Autoattack Animation

I recently played as Caitlyn and felt that her auto-attacks were not on point. If it makes more sense, whenever I immediately click on an enemy minion, the attack animation barely starts, and I already got the gold for last hitting. Her attack animation ends long after the minion is dead. I don't think it's lag since I'm playing at 60-100 fps and usually under 60 ping.