Why So Stuttery?

I played Halo CE a long time ago and don’t recall stutter with the modern graphics but thought I’d try and complete the games before Halo Infinity release. Now, unless I’m looking at the ground, the game stutters on my Xbox One X. Why is this? I’ve read that other people have noticed this since the Reach update? Will this be fixed?

It doesn’t stutter when using classic graphics?

I just tested this on my X1X. Loaded up Two Betrayals (large level so I thought it would be best to test).
Normal difficulty, scoring enabled, watched the whole intro without skipping.
Played about 5 minutes of the level. Gameplay was smooth, no issues observed on either graphics mode.