GT3 McLaren spins easily after 8-10 laps?

I have also had this occur on Porsche cup car races tires do not progressively lose grip seems like pow you lose them. In order to keep pace with higher skilled ai you need to push the tires more but ya then over or approaching 90deg or so and look out. Spun easily. I believe I’ve noticed that this is less of an issue in recent races since the latest updates.