The easiest way is to upgrade to a dedicated virtual server. As mentioned earlier a virtual dedicated server lets you run your sites as if it had its own server "dedicated", except it is actually cheaper because it uses only a portion of a server that has been divided into multiple virtual dedicated servers.
Tulad ng nabanggit mas maaga ng isang virtual server dedikadong ay nagbibigay-daan sa mong patakbuhin ang iyong mga site na kung ito ay may sarili nitong server na "dedikado", maliban ito ay talagang mas mura dahil ito ay gumagamit lamang ng isang bahagi ng isang server na ay nahahati sa maramihang mga virtual dedikadong server.