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    I’m having a pretty strange issue occur in a theme which has responsive lightbox installed, however we’re not sure if you’re plugin is involved in the issue or not. I’m hoping you can let me know whether you’ve seen something like this before:

    When plugins are active on the theme, and more than three users are on the site at a time, we find that resources (CPU and RAM usage) in the hosting account spike tremendously causing the site to bog down and stop responding within 1-2 minutes of use. We’ve tried this on three separate servers with the same result, while other WordPress sites on the same server exhibit none of these spikes.

    We disabled the plugins file and found that the error resolved, however when we tried to identify a single plugin as the cause, it does not appear to be the fault of one plugin, but possibly the result of certain plugins together. We tried activating all plugins individually as well as in groups and results varied each time – sometimes certain plugins seemed to be the cause and other times they did not.

    I’ve listed the plugins we are using below. I’m hoping you can tell me if your plugin has ever behaved badly with one of these other plugins, or if you know of any cause of such resources spikes. We are using the Vantam Church theme (many of the plugins below came with the theme).

    Please let me know if you need any additional information and thank you very much for your time!



    LayerSlider WP by Kreatura Media (came with theme)
    Love It by Vantam (came with theme)
    Responsive Lightbox by dFactory (came with theme)
    Social Network Tabs by Lee Chestnutt (came with theme)
    The Events Calendar & PRO by Modern Tribe (came w/ theme plus Pro upgrade)
    Vantam Push Menu (came with theme)
    WP Retina 2x by Jordy Meow (came with them)
    Arconix Shortcodes by John Gardner
    Contact Form 7
    NextGEN Gallery by Photocrati
    Redirection by John Godley
    UberMenu 3 by Chris Mavricos – SevenSpark
    Use Any Font by Dinesh Karki
    W3 Total Cache
    Wordpress Importer
    Wordpress SEO by Yoast
    WP Super Minify by Dipak C. Gajjar



    Unfortunatelly, I don’t remember anyone reporting that kind of issue. But I’m pretty sure RL is not involved in that. RL is a Javascript driven software, that uses 2 scripts and some regex code replacing to provide a lightbox effect.

    Some of the plugins you listed need a lot of resources to operate smoothly – W3 Total Cache, WordPress SEO by Yoast, Events Calendar, other need relatively more than RL.

    From my personal experience I’d point to the W3 Total Cache, which is difficult to debug however. You may also try to debug / check your site performance with plugins like P3 Profiler (to see the most resources consuming plugins) or Query Monitor, to have a full frontend/backend debug information (here I’d look for slow queries or HTTP requests).

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