SirTox - 7:35 am on Apr 20, 2012 (gmt 0)
Turning posted comments would be a bit extreme. What I'd do is open your WP admin panel and go to Discussion and Uncheck "Enable threaded comments". Check "Break comments into pages" and maybe select to display 5 comments at a time.
Under the Writing settings, uncheck the option to "Convert emoticons".
These steps are ideal for gaining a bit more page speed.