Large, fixed latency on every wsgiref response

I'm using Paste script to configure a wsgiref server on Windows. And I'm 
seeing some weird stuff.

On Safari, every request gets almost exactly 1 second of latency tacked 
on (the amount listed in the network diagnostics pane varies per 
request: 1.03s, 1.09s, 1.08s, 1.12s...). Every request. Even when the 
actual response takes practically no time (e.g. a 304), the connection 
latency is huge.

On Chrome, the latency is smaller (around 300ms) and not on every 
request. Hovering over a request with the latency in Chrome's network 
pane shows the following information:

   DNS Lookup: 1ms
   Connecting: 302ms
   Sending   : 0
   Waiting   : 15ms
   Receiving : 27ms

Firefox also shows a large (1s) "connecting" time for some requests and 
no delay on other requests in the Firebug net pane.

The only reason page load is barely tolerable is because at least with 
threading some of the delays are in parallel, but it's still slow.

I have no idea what's going on here. Any ideas?

Thanks,

Matt
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