DDS Texture Import usage

First of all I know it is normal to take long to import the textures especially if they are large but I have noticed two things.

The process is single threaded i.e. it uses around 25-30 % of the CPU

Q1: Isn’t there a way to use more of the CPU to do this.

Q2: On second thought isn’t there a way to force the process to done on the GPU instead? It would be much faster

The DDS cube map is exported by SpaceScape for Unreal
Although I did try with the NVidia cube map plugin. With The following configuration. The pictures were 2048 in size and the format was unsigned ARBG 32bpp. No mip map generation

Could you specify the size of your texture, does it use an alpha map and what compression settings?