When I start webhttrack and start a mirror, the page that
shows the progress of the mirroring operation refreshes so
quickly that my web browser uses almost 100% CPU time and
grinds to a halt, making it unusable. It isn't even possible
to cancel the mirroring operation or individual files.

I would like the page to only refresh, say, once every 10
seconds, not several times per second. Is there a way I can
change this? The refresh rate for this page is way too fast.