aggressive-indent-mode freezes

[Luca Ferrari]

Hi all,
I'm trying aggresive-indent-mode
<https://github.com/Malabarba/aggressive-indent-mode> on my emacs
24.5.1 but if I enable the mode on some source buffer quite long in
size (e.g., a php file of around 7k lines) the system becomes
unusable: each line I edit Emacs stops responding for a few seconds (I
guess to auto-indent).
I'm curious if is there anybody else using such mode with success on
large sources and if the problem could be on PHP or a specific
language.

Thanks,
Luca