Instead of jumping on another similar host try optimizing your website first, installing caching plugin like W3 Total Cache would make a lot of difference. Of c

Instead of jumping on another similar host try optimizing your website first, installing caching plugin like W3 Total Cache would make a lot of difference. Of course, the best way to handle traffic would be with flat html files, converting your blog to Jekyll/Octopress or similar, like the sibling comments are suggesting.