Pretty much exactly what the title asks.

I have a 2019 RS3, and I admit I drive a little aggressively. I like taking tight turns and hearing the tires. Today, I noticed that there are little bits of rubber stuck to the edges of the front tires. I did the quarter test, and part of the head is still covered so I know the tread isn't worn out, but I wanted to get kind of a rough number of when I should replace them to ensure performance.

Thanks!