Could you leave a modifiable field in the mod settings for us to freely adjust some of its speed or something else? Or simply enhance it? Currently, it has 25% extra production but has one less slot than the vanilla one, and the legendary production module is exactly 25% of the production. In a sense, it takes up much more space but is only as fast as the vanilla one with single production module's speed debuff...and it makes a huge pollution.
IMO, compare to the electric furnace and the vanilla casting building (3x3 vs 5x5, and 2 speed vs 4 speed), this building should have at least double its speed or having some special fancy function.
This is just my opinion, as I said you can simply add a modifiable field in the mod settings without violate your own desire.
