[BestPractices Removing micro-optimization note about @Template

| Q   | A
| --- | ---
| Doc fix? | no
| New docs? | no
| Applies to | 2.3+
| Fixed tickets | -

Hi guys!

I think that a small performance gain is not a *great* reason to recommend something. And really, this was not the most important reason for recommending against `@Template`. I think it's clearer to focus on the real reason, and not get into performance (we could argue against using any feature because of performance).

Thanks!
Just for the record, I do see a significant performance difference between using and not using the `@Template()` annotation. Here are the profiler data:

**Without @Template()**

![without_annotation](https://cloud.githubusercontent.com/assets/73419/5139447/bc2c3e82-715e-11e4-917b-efb8b20e2523.png)

**With @Template()**

![with_annotation](https://cloud.githubusercontent.com/assets/73419/5139445/ba600002-715e-11e4-961d-a41700cc5faf.png)

Without annotation: controller + view = 31 ms; With annotation: controller + view = 23 ms + 25 ms = 48 ms, which is a whopping 54% more!!