Site Very SLOW

I was Very Happy with dreamhost until december that my site start to load very slow, i contacted support and they told me that they was looking into it (because the server load was very high), it was slow but acceptable until the last week, it was imposible, server load in 99, 60,50. Horrible. You moved me to another server because my server server was affected by some isolated incidents.
So now imy site it’s on prague server. But now, It’s worst.
The site load it’s still very high, i saw it over 60, 50,30 and 20, it’s very extrage too see it less than 10, when in the past never was over 10.

Can you Help me? :slight_smile: