Halo CEA and 2A have awful FPS on Xbox One X

The frame rate of Halo CEA and Halo 2A campaigns is STILL awful 100% of the time, ever since the Halo Reach DLC has been added to MCC in 2019. Before that, the Xbox one X was able to maintain a smooth 60fps on every single MCC title. This issue has been stuck with us for more than a year now, and I think I speak for everyone when I say that fixing major performance issues like this should be one of the first priorities that comes with a title like MCC.