Substances rendering slowly after level start.

New developer here. I desperately need assistance. Whenever I load a level of my game in play mode(Making a transition from one scene to another) my substances do not load correctly. They start out as the dark blue blank texture it always starts out with upon loading the project, however it does not load as fast. It holds this unappealing blue material for an estimated 20 seconds. If anyone could give an easy fix for this (fix being, have the substances load before the game starts, or at least have it load quicker when the scene opens) I would very much appreciate it, and I will gladly credit you within my first project (unless requested otherwise). Thank you very much.