Help needed with optimizing decals

Help needed with optimizing decals ( unrealengine / darkravenmusic ) I made this blood drag effect using decals they are nade using like 40 off them and i get allot of lag with them, is there a way i turn this into 1 specific decal or do i have to export it and bake it into the material in substance painter or some other way that will fix it? help,needed,with,optimizing,decals,help needed with,optimizing decals