I'm a WordPress newbie. Can you please tell me which

I'm a WordPress newbie. Can you please tell me which plug-in(s) to use to speed up WordPress? I'm trying to build a new site, and it's really slow, every click is 25 seconds, and my host says, it not on their end. Something I can easily configure, or if someone could help me configure this the first time, that would be even better. I'm stronger on code than on server admin type duties.