I have just pushed update in github regarding atomic template/module cache. This actually increases performance because we do not need anymore eZ Components cache layer and we use very fast just few tens lines of code php class for caching. 

If you encounter any error let me know also if something goes bad you can also disable cache in settings.ini.php file.

Cheers :)

Change log: https://github.com/remdex/livehelperchat/commit/5afd0be6e14b289b1551e63012e171c0ee6500fe