Not compatible with WP v5.2 and/or PHP7

I recently upgraded all my WP sites to v5.2 and the PHP version on server to 7.0 and one of my sites ground to a halt, pushing CPU usage up 100% and taking 1-2 mins to load the page.

After a lot of trial and error I identified the culprit as Folder Gallery.

I’m gutted as this has been the perfect solution for me in getting webcam photos onto my site.

Does anybody know of anything similar