How can recover from recent penguin update 2.1

How can i recover from penguin 2.1 . I created links of high quality and neither my visitor decrease but my keywords ranking falls. I don’t know why so please give the suggestion.

It is impossible for us to answer this. There are any number of reasons why your site might have fallen … and it might not be that you have done anything wrong or been penalised, but just that other sites improved faster and overtook you.

I think your backlinks are coming from irrelevant sites

First Check your Backlinks are coming from high authority sites and not from low quality sites.
Check your content is unique and not copied from other websites.