When pressing the "V" button to vault it sometimes won't work and you have to try several times before your characters behaves as you want him to. Same issue for the quickbar - when you press "1" on your keyboard it will sometimes take you a few tries before your character takes the item into his hands, puts it back or uses it.
Generally said, movement is always delayed. Pressing "W, A, S, D" will always take some time before your character actually starts moving. It might only be a few milliseconds but it is still noticeable. It's making the game really hard to play, especially when you're looting inside a building in a bigger city and your fps is very low.
Furthermore moving around walls/doors/other obstacles inside buildings is still really hard and you sometimes cannot pass through doors if you're not perfectly faced towards them.