Plugin folder is 147.45 MB

Hi!
I have this plugin installed here: http://www.corcodus.ro. Everything seems fine, but:

The plugin folder is taking up a lot of space, I just wanted to ask is it normal? The bulk of it in in it’s subfolder named “C”.

Thanks in advance for your time,
Alex.

http://ww.wp.xz.cn/extend/plugins/wordpress-mobile-pack/