[Tip to User] Disable unneeded javascript load

Open /wp-content/plugins/widgets-in-tabs/widgets-in-tabs.php

Search for:
if ($isAnimate)

Below this line is the list of jquery javascript effects which this plugin loads.
You can remove every effect that you don’t need.

For good measure we will also remove the unneeded effect options from the admin panel.

Search for:
private $effects = array(

Same as above, you simply remove all effects that you don’t use.

This is mainly intended for beginners, so i should probably also mention, that this needs to be redone everytime the plugin get updates.