The Coallition for Gears of War 4 and Playgrounds Games with Forza Horizon 4 are the only two 1st party developpers to offer the choice of a performance mode making the game running at a smoothly 60fps on Xbox One X.
I wish RARE also will offer this choice on Xbox One X for Sea of Thieves. Lowering the resolution to 1080p or even 900p , I' m sure that the Xbox One X can run the game at 60fps. It's a question of choice and its the role of a big 1st party like RARE to offer it. Choice is also POWER.
