Unity 5 Game Optimization

Consider caching Transform changes

The Transform Component only stores data relative to its own parent. This means that accessing and modifying a Transform Component's position, rotation, and scale properties can result in a lot of unanticipated matrix multiplication calculations to generate the correct Transform representation for the object through its parents' Transforms. The deeper the object is in the Hierarchy, the more calculations are needed to determine the final result. To make matters worse, changes to a Transform Component also send internal notifications to colliders, rigid bodies, lights, and cameras, which must be processed.

However, this also means that using localPosition, localRotation, and localScale have a relatively trivial ...