I'm having issues regrading performance with this game, I am running on RTX 2080, i7 9700k and 16RAM.
I play on 3440x1440p and even tried 2560x1440p just to see the difference, "surprsingly" it did not.. the game runs on the Lowest preset with 60FPS in the least demanding areas, when I raid or go to a bit of a crowded spot I reach to a minimum of 45FPS.
I contacted the support via Case and what they told me was: "It's under invastigation".

But, I watched some videos online and I saw some people playing with the same specs as I and still reach a stable FPS of 70 on Very High preset, how is this possible?
Help would be appreciated!

@abysswalker1992 very annoying. I'm on the PC version.

I recently got the chest piece of Hunstman, not sure if it is a bug or not but I have two of the same gear in my inventory now.
It was picked from a chest of gear.

@kolack yep they are on by default for me and perofrmance does seem a bit better with the in-game settings, thanks.

@kolack Thanks, I'm testing the settings right now.

@kolack I play on lowest preset and maintain a framerate of 60 which is ridiculous due to my rig.

@yazx_ the game itself is just not optimized, I guess it's not worth trying to play with the settings anymore, I did tried to set them all on lowest and I sitll get the same framerates everywhere.

@yazx_ looks like nothing changed either way, Ubisoft are still taking 1 step forward and 20 back.

@kolack I was waiting for the new patch as well to answer this, unfortunately no improvement either way. Ubisoft made me question my future purchases from this moment, I'm an active member since 2014 haha, I should have known better.

@yazx_ exactly, then I'm hoping that new update will fix the perofrmance issue eitherway.

I'm confused, so the issue with the perofrmance basically was the memory leak that they listed?
because according to their known bugs topic, I see this:

PC 
Alt tabbing can cause the VRAM meter to display wrong values.

Can someone explain if the peformance issue was due to you alt+tabbing to desktop?