Let's get some things straight about Vayne
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She is short ranged. Her base auto attack range, 550, is on the generous side, but that's because every other marksman can either extend their auto attack range past 550, or has spells to affect the fight from over 550 range.
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She has weak early game. Just trade with her. Be confident that you'll win. Unless she gets a wall pin she should have to back out of the trade before most other ADs. I see so many bot lanes afraid of her early who take hits without retaliating. You can't do this. If you play like this even
will be op early.
Vayne is oppressive when she gets a lead, just like many other champions. But this should not be confused for being op. She's not oppressive at every stage of the game, which is when champs start needing a change.