Make Furnace Recipes FAST with FAST Furnace Recipes. Multiply Furnace Recipe Speeds by up to 128 for all Furnace Recipes, and EVEN Modded Recipes. You can also use Balanced Mode (ON by default), making all (regular) Furnaces regular, but adding special Fast Furnaces, made by crafting multiple regular Furnaces together. This turns the mod from a helper/faster game mod into just a lag and space reducer, since it is the same speed as if all regular Furnaces were placed down normally. The amount of Regular Furnaces required for a Fast Furnace is equal to the Speed Multiplier specified in the mod options. (For ULTIMATE BALANCE)

I would recommend AAI Loaders or Faster Logistics for full usage of the Fast Furnaces while in Balance Mode (or Regular Furnaces while in Regular Mode)
Also, DO NOT LOAD A SAVE GAME which has Balance Mode enabled without Balance Mode, because it will destroy all Fast Furnaces (already placed or crafted in-game). Save Games loaded without Balance Mode before, can be loaded with Balance Mode, but ratios related to furnaces will be broken. It is recommended in these games, that you upgrade to the Fast Furnaces for anywhere the ratios are broken. (or where they will be broken if done before switching to Balanced Mode) This will fix the ratios.