no performance issues but small planes oversensitive to wind

Hi,

I noticed that small planes like the 152 or Savage Cub have become a lot more sensitive to wind and start shaking strongly at wind speeds over 6 knots. I do not like to fly at lower wind speeds as it makes water look like oil slick. 

Anyone else experiencing this. I presume this is not realistic? I liked the flight behavior of these planes before but they seem to have changed something....