Why did the rails server become dumb?

Question

Ruby on Rails

I set up a stage server at home according to the following scheme:
Tupit everything in a terrible way. The page takes half an hour to load. I am one user. Why this happened I can not understand. At first it worked acceptable
Win 8.1 3G ram - virtual machine ~ 1.4G, ssd
Tupit both from the computer and from the phone. The page loads, but takes a very long time.

Although tail staging.log -f tells me that the pages are generated quite quickly. The Internet itself works well too, even through a proxy. It remains to think about the router with its virtual server on port 3000. Then nginx. Nothing else comes to mind. What could be? How to find out. I have been watching Linux for a month in my life))

Answer 1

I'm sorry, I got it. The answer turned out to be simple. Incorrectly specified the link to the javascript file, so the page hung until it received a 503 Service Unavailable error. After that, the page was displayed only. False alarm in general