Hi Juan-
Thanks for reaching out, I’m sorry to hear about the difficulty setting up CloudFront with W3 Total Cache.
One of the first things I noticed, that may or may not be related to this issue, is that your domain does not have an A Record or CNAME set up for the primary domain, only the www. subdomain, which may be contributing to the very long initial pageload time.
Double-check the CloudFront Setup instructions, including that you’ve set your S3 Buckets as the Origin.