I downloaded all skins from Laurent Leceurs. But in a test with the GTE cars 32 pieces I didn't have any FPS loss.
But with the Ferrari 499P and the Porsche 963 the FPS drops massively.
I don't see any connection there. The Vanwall remains on my PC. All Studio 397 endurance cars have position lights.
The model is sold in the shop and should also have the working position lights.;)