Hi @danthony016,
I’ve been looking through your site’s source code, and from the filepaths of your scripts and stylesheets, it appears the plugin you’re using is actually “NextGEN Plus” (e.g. “https://www.jarrettbay.com/wp-content/plugins/nextgen-gallery-plus/modules/galleria/static/galleria-1.4.2.min.js”).
It’s not that Optimizer doesn’t work with the NextGEN Plus or Pro add-ons, but rather that it’s not currently designed to optimize the scripts and stylesheets loaded by those plugins *in addition to* NextGEN core, NextGEN Legacy and NextCellent Gallery.
You’re actually the first person to inquire about this, and I’d be happy to take a look at adding that functionality for you in a future release — I’d just need you to send through a copy of a recent version, as it’s a paid add-on, and I don’t have access to updates. You can upload the zip file as an attachment on Optimizer’s contact form.
As for the scripts and stylesheets being loaded by NextGEN itself, you might like to experiment with Optimizer’s “Advanced options” section (in the “Script and Stylesheet Optimization” box on Optimizer’s settings page) to disable the ones you’re not using. For example, you don’t appear to be using AJAX pagination with your galleries, so you could tick the Remove “nextgen_pagination/static/style(.min).css”? option, and you’ll see that stylesheet (which you listed above) removed sitewide.
Alternatively (and apologies for the self-promotion), but I would strongly suggest checking out NextGEN Gallery Optimizer Pro for its NextGEN Gallery Deactivator feature. This completely deactivates NextGEN Gallery, NextGEN Plus and NextGEN Pro, except on pages you specify…which apart from giving you a big speed up from not evaluating the weighty code of these plugins on every page, it will also ensure that *none* of their scripts or stylesheets can load either. Just wanted to mention it, because it would be perfect for your setup.
I hope this helps!
Cheers,
Mark.