Each helicopter type has an airspeed that gives a minimum rate of descent in autorotation and ideally that is what pilots fly to achieve to allow more time to prepare for the ditching. This is typically around 80 kts and at speeds slower or faster than this then the rate of descent is higher.
Helicopters perform better when taking off and landing into wind as this provides greater lift and requires less power. Wind often creates turbulence and this is not comfortable but is often unavoidable.
If you have concerns then speak to the pilots or your company.