I'm not able to open the site. Tried also with https...
It is much faster now lol https://www.phatmonkey.me
Use an online video compressor MP4
There are quite a few and there is no loss of quality especially Sound it can reduce file sizes by quite a bit.
You should also consider having the other 3 that are lower down in a modal reveal window or even on a different page with links to them, because the browsers are trying to load all of them at the same time, if they were in a modal. Window for instance they would load on click of the link one at a time which would greatly increase the viewers experience and not have to wait too long for a full page to .load