> For the complete documentation index, see [llms.txt](https://docs.en.avalonia.css.nlnet.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.en.avalonia.css.nlnet.net/documentation/cong-zhe-li-kai-shi/xing-neng-ping-gu.md).

# Performance Evaluation

Acss requires dynamic loading of style files and dynamic generation of objects such as Avalonia resources and styles.Therefore, theoretically, programs using Acss **have more memory and startup performance consumption** than normal Avalonia programs, and **the performance after running is relatively flat**. 

In addition, Acss uses a lot of reflection and does not support AOT, please be aware of this.

{% hint style="warning" %}
Detailed performance evaluation is not yet complete.
{% endhint %}