Template thumbnails, and previews and modxcms.com performance

I’ve got like half the templates in the extras section such as these:

http://modxcms.com/extras/package/?package=14
http://modxcms.com/extras/package/?package=74
http://modxcms.com/extras/package/?package=127

I could go on, but just search for templates by AMDbuilder.

So, if things can be fixed great if not let me know and I will start uploading again....

AMDbuilder