Online Race Player Desync/Lag

Had a few mates (6 of us) in a lobby last night doing various 20 minute timed races, all was going fine until we were running Daytona Oval at night in Mercury XR7s. As soon as people were reaching over 150mph, different players were seeing different people lag around or desync, which made close racing impossible. We were playing on a mix of Xbox and PC, all with different settings, yet everyone was experiencing this. We all reset our games and tested our internet connections, all of which were fine, and tried again and the issue persisted. We haven’t experienced this issue before in previous updates using the same cars on the same track.

@Shaunnnnnnnnn
Would it be possible to provide a recent video of this in action?