same shortcode, two different results

I’m using the same shortcode in widgets on two different sidebars [onclick-show-popup group="1"] but they give totally different results. For one, it’s square, the overlay is white and title is black. The other has a black overlay, border-radius, and white title. What is the difference?

Also, there seems to be some kind of plugin incompatability, because the plugin delays my page load time. From P3 Profiler it takes 23% of my plugin runtime (I have 25 plugins) –

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Report date: December 12, 2013
Theme name: Bazar
Pages browsed: 9
Avg. load time: 2.6617 sec
Number of plugins: 25
Plugin impact: 44.20% of load time
Avg. plugin time: 1.1764 sec
Avg. core time: 0.1712 sec
Avg. theme time: 1.2003 sec
Avg. mem usage: 62.11 MB
Avg. ticks: 10,232
Avg. db queries : 110.56
Margin of error : 0.1138 sec

Plugin list:
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P3 (Plugin Performance Profiler) - 0.0063 sec - 0.53%
Akismet - 0.0046 sec - 0.39%
Contact Form 7 - 0.0467 sec - 3.97%
Google Analytics For WordPress - 0.0250 sec - 2.12%
IgniteWoo Updater - 0.0061 sec - 0.52%
MailChimp - 0.0217 sec - 1.85%
Onclick show popup - 0.2723 sec - 23.15%
Pinterest Pin It Button - 0.0054 sec - 0.45%
Post Types Order - 0.1284 sec - 10.91%
Redirection - 0.0507 sec - 4.31%
Widget Logic - 0.0208 sec - 1.77%
WooCommerce Dynamic Pricing - 0.0344 sec - 2.93%
Woocommerce Gateway Stripe - 0.0040 sec - 0.34%
Woocommerce Mailchimp Subscribe - 0.0015 sec - 0.13%
WooCommerce - ShipStation - 0.0014 sec - 0.12%
WooCommerce Trustpilot - 0.0165 sec - 1.41%
WooCommerce - 0.3880 sec - 32.98%
WooThemes Helper - 0.0011 sec - 0.09%
WordPress Debug - 0.0007 sec - 0.06%
Wordpress Seo - 0.0780 sec - 6.63%
Xcloner Backup And Restore - 0.0003 sec - 0.03%
Yith Topbar Countdown - 0.0132 sec - 1.12%
Yith Woocommerce Ajax Navigation - 0.0096 sec - 0.82%
Yith Woocommerce Compare - 0.0182 sec - 1.54%
Empty  - 0.0212 sec - 1.81%

http://wordpress.org/plugins/onclick-show-popup/