Audit Policy Best Practice

Summary:

User wants to enable Audit for all fields on most of OOTB sales objects and custom objects. I have a concern with the performance implications if we enable so many objects and fields for audits given a lot of trigger, object workflows and WS calls in place.

Do we have any best practice guideline I can cross check from the performance perspective?

Content (required):

as above

Version (include the version you are using, if applicable):

23C

Code Snippet (add any code snippets that support your topic, if applicable):