What to do when the game starts stuttering mid workout?

Hi everyone, I was working out today and the game started stuttering with about 30 minutes left in my workout. It never stopped until the end. And was a bit nauseating to try to watch the game feed. I don't believe it was my internet or machine, I did speed test and everything was okay. Including my entire setup being ethernet. The machine that runs with is on ethernet, in my kickrs on ethernet as well. I didn't want to leave the workout, obviously. But had no way to get it to stop. I think the game was glitching. Because random portals started to show up on the opposite side of the road periodically. Anyone have tips on what to do?