Initially pages aren't loading correctly until reload

Hi,
We’ve had a tough time with VPS.net hosting over the last 30 days with unreliability. We migrated our WordPress MU with domain mapping to a VPS cloud server with Centos 5.8, Litespeed, CloudLinux and higher versions of PHP & MySQL. We are experiencing a few issues:
-1st Issue: Mostly in the Chrome browser, but sometimes in Firefox & Safari we load a home page of one of our sites & it appears that it loads without the theme, then we reload it & it renders correctly. Almost all sites in our multi-site are affected.
A few examples:
http://cmsadgroup.com
http://iguidetours.com
http://clearlawinstitute.com
http://pencequalityhomes.com
-2nd Issue: is that images on some pages are not coming up until reload. An example would be our portfolio page: http://cmsadgroup.com/portfolio
-3rd Issue: is that on this site: http://iniav.com the the page comes up, but the slider doesn’t show up until the page is reloaded.
We have deactivated & reactivated all plugins. We were runnning wP Minify before the migration, but have since deactivated hoping that would fix the issue. We are not running W3 or WP Super Cache.