I haven't played for a while so I went through with updating the game and then when I launched the game, my anti-virus blocked the log file that must be part of the game files. I quickly told my anti-virus to leave it alone but could that have caused issues with game that would lead to the race sequence lagging?

I went from a solid 60FPS to around 10FPS in the race sequences and I'm assuming it's either related to my anti-virus or it's related to the latest update. The game was working perfectly before. I haven't checked another save to see if it's happening in there too, I'll do that tonight and update the post.