Optimization: Avoid the encapsulation of stored factories in the container

The factories in the container are stored in a function `() => factory(this)`, pushing a additional function on the stack when using the factory.
The factory could be stored as is, and calls modified as `factories[type].Item2(this)` to avoid this excendentary call.

Locate the container implementation and the stored factories described in the issue, then trace the calls indexed by type. Compare the current wrapped-factory path with direct factory invocation and verify that factory behavior is unchanged while the extra call is removed.

Written by the indexing model from the issue text.