I have a problem since my new internet! I have Arcor 6000 but when i´m starting race it´s the first 30 seconds very laggy and i don´t know why! CAn someone help me?

Probably because the skins get downloaded.

I have that, too. But it isnt much of a problem imo.

it can´t be that,because it´s when i´m racing 50 times at the server too

By the word "laggy" you mean that the other cars disapperas and you see a LAG X.XX text above it? Or the vehicle movement is rough and unsmooth? If it is so, check your FPS, when there are many cars on start, it can excessively load your CPU.