A Far Cry 6 player may have found a way to improve the game's performance by simply turning off an overlay.
In a post on Reddit, user contrabardus said that they disabled overlay for Ubisoft Connect, the service that connects Ubisoft's loyalty program and desktop app, to avoid a notification bug while playing on PC.
Doing so “significantly increased and stabilized my FPS […]” I went from just under 60-ish FPS to 48-ish with drops as low as 70 and no dips below 60. The user says they're playing on a PC with some impressive specs, but playing Far Cry 6 with "every graphics setting maxed out."
To turn off Ubisoft Connect on PC, you need to open Uplay, open the menu in the upper left corner of the screen and go to settings. From there, under the 'general' tab, uncheck the "enable in-game overlay for supported games" box. If you already have Far Cry 6 or another Ubisoft game open, you must restart the game before any changes take effect.
It's currently unclear whether Ubisoft services are limiting performance on other platforms, but the impact of Ubisoft Connect seems to be less felt, at least on the PS5. The software opens a browser page, but it doesn't seem to be running in the background.