[otrs] Apache settings (besides mod_perl) to make OTRS run faster.

Any certain settings or variables I can check/play with to make OTRS run faster. It takes forever (after a lot of use) to load the graphics, for a certain page to load up, etc. Sometimes it just times out. Sometimes I just have to re-click the link to get it to work. Running on RHEL 5 with latest patches. Apache 2.2.3, etc Thank you, Adam Nielson