There are quite a few places to pass. Tightening turn 1 is a poor idea. It's really not that wide a turn to begin with... Just not Tilke-tight. Which isn't a bad thing.
If I _had_ to reprofile a corner, it'd be the last left-hander before the pits, and yes, that might work better if it were a bit tighter.
You need to see a track like this in 3 dimensions to appreciate it.
http://www.tidewatersportscarclub.com/movie/wgi.mpg