BI Publisher Report有很多性能问题是因为，rtf模板中含有大量的ancestor-or-self标签，在生成Output的时候，Report将会花很多时间来解析XML。

Solution:把ancestor-or-self标签转换成绝对路径。
比如：改成

Reference: R12: Troubleshooting Known XML Publisher and E-Business Suite (EBS) Integration Issues [ID 1410160.1]

Common RTF Optimization issues
Please make sure that "ancestor-or-self" is not used in RTF Template as it is very costly and time consuming.

ITPub博客

BI Publisher Performance Issue caused by ancestor-or-self tag