.ies file import

Hello,
i am trying to use .ies files for vehicle headlights and i have a few Problems:

  1. When importing .ies files, the resulting texture light profile seems to be not centered
  2. The import resolution is 256x256 no matter what i try

Does anyone have an idea how to solve this? increasing the resolution would be the most important thing.

I have a .ies file which should illuminate the road infront of the car in a kind of rectangle shape. The .ies file is in 0.01° steps, so there should be no issue with the .ies file.
This is the result (dont mind the slit in the middle, but the “spikes” at the sides are weird, decreasing the resolution makes the spikes bigger, so i think increasing the resolution of the texture light profile file would do the trick)