self made bf1 map converted to bf2 crashes with high foliage.

[wsa30h]

Hi fellow battlefrontians i have a weird issue where in my battlefront 1 map that i converted for battlefront 2 it crashes with high level of foliage or high spread level of 0.1 but is totally fine at 0.5 i have 3 layers of foliage and here is my prp file contents. Layer(0)
{
   SpreadFactor(0.5);
   Mesh()
   {
      GrassPatch("nab1_grass.odf", 80);
      File("editor_grasspatch.msh", 80);
      Frequency(100);
      Scale(1);
      Stiffness(0.0);
           ColorVariation(0.1);
   }
}
Layer(1)
{
   SpreadFactor(0.2);
   Mesh()
   {
      GrassPatch("nab1_grass_close.odf", 30);
      File("editor_grasspatch.msh", 30);
      Frequency(100);
      Scale(1);
      Stiffness(0.0);
           ColorVariation(0.1);
   }
}
//Layer(2)
//{
//   SpreadFactor(0.5);
//   Mesh()
//   {
//      GrassPatch("nab1_prop_grass_tall.odf", 80);
//      File("editor_grasspatch.msh", 80);
//      Frequency(100);
//      Scale(1);
//      Stiffness(0.0);
//      ColorVariation(0.1);
//      CollisionSound("");
//   }
//}