Original sentence: In computing, the SAP BI Accelerator is a computer appliance - preinstalled software on predefined hardware - which is used to speed up OLAP queries.The software is optimized for specific hardware and operating system combinations.This solution eliminates the need for aggregations
Edited sentence: Boosting the performance with the BI Accelerator users are able to generate reports in BI almost immediately.It is used to speedup respone times on OLAP queries.The SAP BI Accelerator is an appliances (preinstalled Software on predefined Hardware).The software is optimized for specific hardware and operating system which is one of the reasons to gain performance.This solution eliminates the need of agregates