Why is Chrome Rendering Rails Pages So Slowly When Using POW?

When using Chrome with a POW .dev domain, page loads are incredibly slow.

There is a long delay between Rails finishing its work and the page being rendered to the screen.

Running the same app on a .dev domain in Safari or Firefox results in instant page load. As does running an alternate server locally on localhost.

The specifics of getting it to work on OSX are as follows:

1. Open System Preferences
2. Open Network
3. Open Advanced
4. Click Proxies tab
5. in the field labelled Bypass proxy settings for Hosts & Domains, add *.dev
6. Click OK
7. Click Apply