Minification also does some tree-shaking, which results in unused branches and libraries being pruned ( and therefore not needing to be loaded into memory ) and

Minification also does some tree-shaking, which results in unused branches and libraries being pruned ( and therefore not needing to be loaded into memory ) and a smaller source size. Some constants can be inlined, which leads to faster execution times as there is no need to wait for a variable to be bound as its value is just written directly into the source everywhere it appears.