Long rendering time after download is 'Done'

frameset with php page

[scorpion]

I have a framset that loads a file 'myfile.php'

myfile.php
header("Location: redirecturl");

I notice that the frame content (from the redirect) loads very slowly, when the frameset page loads, it says "done", then after perhaps 3-4 seconds, the new page shows up. It has never been so slow with a direct php redirect.

Is this normal?

[jatar_k]

Sounds like the page is trying to render something very large, or doing some complex calculations.