4 photos of tyres.
Didnt matter what i did i could not get the left rear tyre to grain (looks under inflated in my opinion but trust me it wasnt). Somewhat didnt struggle with right turns but in saying that was 0.5 off the leaders all day.
Maxxis sport here in Australia.
Pressure varied between 13 and 16 on the day.
Most guys in my class were running 13 to 14.
That LR looks normal for a predominantly left turn track.
I wouldn’t worry about what the front runners tires look like.
I’m not sure why you’re setting up for certain corners vs faster overall laps when you’re .5 off the leaders? I would tune the kart for fast overall laps and then worry about setting up passes with driving.