Hey Chaoss -
Under the Usage tab of the Material Attributes, you don’t want to check all of the Used with options, in general if you have the Automatically Set Usage in Editor (on by default), the material will only assign what is needed for the materials usage. If you are using the material with ALL of the Usage options, realize that each option will be processed separately in the engine which can greatly increase compile times.
Try un-checking all of the Usage check boxes and save the material again. You should have it automatically set the needed elements and will speed up your compile times.
Thank You
Eric Ketchum