If you plan on playing through Crackdown 3 in co-op, it may be worth knowing that the game will be locked to 30FPS. Yes, even on PC.

To be fair to the Xbox One versions of the game, it's capped at 30FPS as it is, even when playing alone. However, the PC version has the ability to play with much higher framerates, including uncapped if you so desire. That is, unless you're playing co-op on the PC.

A number of Reddit users have found out that the 30FPS cap comes into play whether or not you are playing PC to PC or PC to Xbox.

It should also be noted that other cross-play titles such as Forza Horizon 4 and Sea of Thieves do not have any sort of multiplayer framerate restriction in place. Hopefully the development team addresses this bizarre oversight in the next update for the game.