Hi,
I've just bought the new version of Komento. I was on a 2.0.8 with 144kb of javascript loaded (including "/media/com_komento/scripts/komento-2.0.8.static.min.js" 138kb alone).
With Komento i load 1.1Mo of javascript. The biggest file is "media/com_komento/scripts/vendors/jquery.komento.js" 279Kb. This file alone is nearly twice as heavy as all the Js loaded by the older Komento.
I'm surprised because i wanted the version 3 for the "Performance Enhancements" you described here
https://stackideas.com/blog/komento-3-0-stable-release