Your lines looked good.
His turn 2 looked like his late apex was a good set up for the turn right after. The 4th he overshot, maybe brakes or tires, since he let off to let you pass...
At least my take.
2011 M3 Dakar Yellow-Black Leather-Comp Pkg-DCT-Akra Evo-AP BBK Front-VOLK RE30/BBS GT4 18x10" Square
1995 M3 Boston Green - Chipped - Ground Control Coilovers - APEX ARC8
Past: 2005 Porsche Boxster S-Silver-6spd-Fabspeed Exhaust