Suspension Problem

I have noticed this problem in early access. Since then new cars came out which have exaggerated this problem like Porsche 911 GT3. This makes some cars/tracks combo undrivable, like Ginetta G58 at Virginia. Below is example of this behaviour:

I assume that this is not only the suspension problem but also the tire model. When I was attacking this chicane in more straight line the oscillations where significantly lower, but when lateral movement is combined with the curb riding then this very unrealistic behaviour can be observed not only on the curbs but also on some bumby sections of the road (e.g. penultimate corner at Virginia).