[Plugin: WP Super Cache] My site is a Static website, Do I need WP Siper Cache?

I am debating whether I need to install WP Super Cache or not.

My site’s all pages were built in static pages. However, plugins I added (like odiogo, YARPP, Google Live Chat, social bookmarking sites, etc) made the site very slow to the point that my host company locked up my database.

I have now removed these plugins, but I am still afraid that I will need to do something to mitigate the risk of getting my db getting locked up.

Will adding WP Super Cache be any good for me? Please comment. Thanks.