Flex rendering: performance and escalation problem

Steps to reproduce:
1. Create a custom component extending of uicomponent class, having three childs: label, textinput and button;
2. Implement all recommended best practices to obtain application with more performance;
3. Try to load an application containing more than 100 custom components inside in a container canvas with border;

Actual Results:

The render elapsed time to load and show the application and your components, it's very large and in comparison with html/js it's a joke;

Expected Results:

The render elapsed time to load and show the application and your components should have a minimum and considerable difference of html/js client application and not explode;

Extra information, some applied techniques:

Fixed width and height for doesn't invoke measure() lifecycle method;
Minimum usage of setStyle() invocation for each component;
Minimum container usage;
Deferred instantiation "queued" for tabnavigator;
RSL (Run time Shared Libraries);