Stutter and choppy gameplay on series x

Has anyone else experienced this? I recently got a series x and fired up gears and it’s a mess to play, with freesync on it’ll start out smooth as butter but couple minutes goes by and the gameplay slows down and gives off a stutter feeling. I have a fps counter on my monitor and it shows 60, sometimes a dip to 59 when you pick up the fabricator in horde for example, my internet seems good download speed 73mbs and latency 48ms, just trying to rule out if it’s the console or the game itself any feedback would be appreciated.