Requires MixinBooter to load otherwise this mod won't do anything.
Tinkers' Construct scans all recipes to register ore dictory based smelting recipes, such as golden sword => 288mB molten gold. However, there are thousands of recipes in massive modpacks. The game would scan them every game loading and take much time. This mod caches all smelting recipes and stops Tinkers' Construct scanning all recipes over and over again. Performance optimization would appear on the second load.
A test result on a massive modpack: e2e-extended