Assassin’s Creed: Unity will be updated with a new patch this week, which aims to sort out some of those well-documented framerate and multiplayer connection issues.
Patch 3 contains “over three hundred fixes”, and although it may improve framerate,says there's another patch on the way that will tackle that problem more specifically.
Outside of direct performance, the patch sorts out several problems with poor Arno getting stuck in the environment, and general tweaks to AI and basically everything else that should make for a much smoother experience. This should start the long process of ironing out Unity's various flaws.
It's a giant update, so I won't post the full contents, but you can head over tofor the full list. You might also want to check out our to see what we thought of the game.