R8 4S very shaky at high speed. New chassis?

Hello Together, as I have often read, my recently acquired R8 4S with Magnetic Ride behaves very uncertainly at high speed. The car is shaking from about 260 km/h felt back and forth and everything from 300 km/h feels more like a driver after a test of courage than after safe driving. With long turns with speeds from about 230 km/h I have the feeling that the car jumps to the corner edge “. Now I know from other forums and threads that a new driving w At KH Tuning I was also told this and recommended the KW V4. Before I do this expensive thing for me I would like to ask whether someone has already converted from MR to coilover suspension and how the experiences after the change and the settings are? Greetings