Nice addition. I tried the others and noted a nice increase in performance, but adding in yours just put it through the roof. It takes like 1-2 seconds before anything shows up on the screen, but for the most part, it's the whole page, fully loaded. Much better than waiting 5-10 seconds for "most" of the page to load...

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I also noted a speed increase for most sites by enabling the piplining as suggested.

However, the nglayout.initialpaint.delay may cause some "wierdness" if set to zero. (Especially with sites that use lots of tables)

You might want to play with this setting. I believe the default is 250, so try having the number and test.

For me, 100 works just fine