Now, this generally will only be for PC players however it will cause anyone who sets their frame rate above 60 (Due to new option to do so in the most recent patch) for their Smart Pistols and other lock-on weapons such as the Archer to nearly instantly lock on. Yes faster than before.
Thanks to FrothyOmen for uploading this video showing how it works. Really hope this gets fixed soon. I have no doubt people will abuse this.