Script too slow... Rated 1 out of 5 stars

First I really thought I was going to like it. I've used WOT through NoScript to check which sites to allow and sometimes to check the site I'm on via FlagFox...
But under only couple hours I noticed that my whole browser had slowed down, I was getting "script busy" errors, and yes, they were from this plugin.
It's not a brand new machine, only a year old or so, I think it's 1,6Ghz duial-core mini laptop with Windows 7 (uh, I normally over install linux right away) and with FireFox 30.0
Disabling the plugin fixed the problem with one swift browser reboot.

This review is for a previous version of the add-on (20131118.1-signed).