Update README.md

README.md

@@ -17,6 +17,7 @@ The spline data will be stored in the Positions, Tangents and Normals arrays and
 
 Since you can't use AddComponent in Udon, you will need to prepare a prefab of an empty GameObject with the CatmullRomSplines script added. To generate a spline, use either `SetupCatmullRom` or `SetupCatmullRomVector` and supply it with an array of Transforms or Vectors. This will generate the spline data. To update the spline data at runtime, use `UpdateControlPointTransforms` or `UpdateControlPointVectors` and supply new data.  `UpdateResolution` can be used to change the resolution or toggle the closed loop setting and will reprocess the spline data. When using these at runtime, be careful to not call any of these unless absolutely necessary, or reduce the resolution / control point count since Udon is quite slow.
 `GetWorldSpacePosition` returns an interpolated world space position for t on the spline. It can be used to (for example) make objects follow the spline.
+Takes about 0.03ms, depending on the way the spline is set up and the distance between control points.
 
 **Examples**