My custom packaging startup Packlane (http://packlane.com) uses Meteor. Really grateful for this update since the old Mongo version had some major issues.
The reason your site is taking long to load is because you have multiple >1MB assets. Open up the Chrome inspector and look at the network tab. You're loading 7.7MB, 7.3MB of which are images. There are two gifs that are over 2MB in size. You should reduce the size of them to 200KB at most, and also consider delaying loading images that are below the initial viewport until the user needs to see them. I also recommend compressing all of your jpg's and using a tool like ImageOptim to strip out any extraneous data.