Drill ship wont drill correctly

I've been having issues drilling through asteroids, so I decided to engineer a drill ship that should plow through an asteroid like butter. Screenshot attached. It appears that only 4 or 5 drills are allowed to drill at any one time. It also appears that something that the tip of the drills does not work, only at a slight angle. The smaller size drills seem to work faster and better than the large drills that I have on this ship.

I have to keep forward pressure and even then, the drills act like they are dull. They are extremely inefficient and require a non-flat surface to be able to drill the ore. The drill shop can only make a minor indentation before it becomes leveled, and the drill ship will no longer drill while at a 90-degree angle to the ore.

I do not know if the ships are limited to only 4 drills collecting ore at one time or some other issue exists where the tips do not cut into the ore, so the drills come in contact with the ore and cannot move forward.

These large drills are spaced as close together as a workaround for voxel material being missed between the drills when they are placed 1 full 2.5m block apart.

I've attached my blueprint folder here as will.