Make Belts and Inserters FAST with FAST Logistics. Multiply Belt and Inserter Speeds by up to 128 for all (UnModde) Belts and Inserters. You can also use Balanced Mode (ON by default), making all (regular) Belts and Inserters regular, but adding special Fast Belts and Fast Inserters, made by crafting multiple regular Belts and Inserters 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 Belts and Inserters were placed down normally. The amount of Regular Belts or Inserters required for a Fast Belt or Fast Inserter is equal to the Speed Multiplier specified in the mod options. (For ULTIMATE BALANCE)

Recommended by Fast Furnace Recipes.
DO NOT LOAD A SAVE GAME which has Balance Mode enabled without Balance Mode, because it will destroy all Fast Belts, Fast Underground Belts, Fast Splitters and Fast Inserters.