Still getting cut track warning at turn 1. Don't have to go outside the line at all, will ping you if you're too close. As to performance, on my own with settings turned down to sub-spud levels I hit 120 and can drop down to the high 40's.
I've not had a cut warning yet and tried to use all the track. Will turn off cut rules and return to 14.30 start time with 1 x time speed thingy. Don't want people struggling.