This presentation provides severalBest Practices suggestions for tuning to improve overall FileNet  Image Services performance for IBM FileNetImage Services Version 4.1.1, 4.1.2 and 4.2
Slide 2: See Technote: 1458889
Slide 9: See Technote: 1367952
Slide 10: Install the latest Fix Pack
This presentation is also available in PDF at  ftp://ftp.software.ibm.com/software/iea/content/com.ibm.iea.filenet_is/filenet_is/4.2/content/FN_IS_Performance_Tuning.pdf