Is it possible to set higher texture size when importing IES to UE?

Hi.

I am importing IES file into Unreal Enine 5.3.2 for Linux.

IES profiles are actually imported as a texture, and its size is always 256x256 regardless of the IES file.

I think that higher resolution texture will yield better results for my IES file.

Is it possible to set higher size when importing IES to UE?

If possible, how can I do it?