Lulu's autos disappearing/registering slowly at destination when farming

I have noticed for some years and would assume it was something that would just naturally be fixed one day but yet has not, farming and last hitting with Lulu has been somewhat of a chore, more so than last hitting with a Sona.

From what I can tell her auto attack isn't registering the moment the graphic reaches the minion, which has for years made it hard to uber-last hit minion farming when trying to get in between 5 minion autos. I can say with certainty, how I am able to farm with Sonas mid-low missle speed auto attack in-between minion autos, that Lulus mid missle speed auto doesn't reliably register on-time for last hits.

Thoughts?