Trees move at different speeds in wind, how to make them the same


Hello. As you can see in the gif, I have a few types of trees which all move at different rates in the wind. The green trees are Scots Pine from the UE4 Kite demo, while the orange trees I exported from speedtree for UE4. I have the wind set to best in the materials and they are all instanced with either the foliage tool or the procedural spawner. Does anyone have any advice on getting them to sway and blow the same amount?

Thank you!