Is this expected tread wear ?

I’m a little confused and looking to understand what the issue could be. Running -4 deg at ride height, 215/40 on a 9.5 – this is my inner side after about 2k km, alignment was completed right when the setup was put on so I know toe is not the issue.

Ran this setup last time and it took atleast double the time to get this point in wear. Ofc I am aware that camber eats tires at a much more accelerated rate but this seems a bit too fast at this little camber. What are the main things I should be checking on? Also does anyone recommend a specific PSI for this setup? I do around 40PSI