使用libxml SAX解析器处理大量嵌套元素

I am currently using the SAX interface of the libxml library to parse a large number (around 60000) of XML documents less than 1Mb in size. I have chosen SAX as I thought it would be the most efficient. Would there be much of a difference in performance in this use case as with say a DOM parser?I am currently using the SAX interface of the l