Slow Internet Speeds when connecting to servers farther than a few states away

So how can I talk to someone who can actually fix our problem? The only thing I can do is request another tech to come to the house and not fix the issue. The issue is obviously not in the house. It's a larger equipment routing issue.
Our internet speeds are plenty fast (~700-900mbps) when connecting to servers located relatively close to us (west coast and Midwest - we are in California). When I try to connect to a server outside those areas, like Florida, New Jersey, Virginia, etc., our speeds drop to ~3 or 4 mbps. 

If I connect to these servers using a VPN, the speeds are fast again, around 500-600mbps. So the issue seems to be with the way Comcast is routing traffic that goes to these parts of the county. We also are having issues with the DVR system. Since the DVR Comcast provides is virtual, when the recording has to play back from a server on the east coast, we have a bandwidth issue. It will either constantly pause playback to buffer or it will refuse to play at all.

We had a tech come out last week who said he would escalate the problem. We waited about 5 days for the issue to be resolved. But the "fix" only lasted about 4 days. Now it's back to the same issues. I'm not sure what Comcast is out there doing, but they certainly have an issues with a certain node or something. We need to get this resolved.