prism-sw pipeline is made by default in case no hw acceleration is available.
Before j2d pipeline was used by default.

Performance results show that prism-sw pipeline is from 10% to 90% worse than j2d pipeline.
Performance of sw pipeline need to be improved and made more close to j2d as otherwise
it will be big performance degradation on systems without hw acceleration.

sw vs j2d performance results for fx2.2-h145 (b21-fcs) are here:
  http://aurora.ru.oracle.com/performance/faces/ChessBoard.xhtml?reportName=FX2-pipeline

sw vs j2d performance results in fullspeed mode:
  http://aurora.ru.oracle.com/performance/faces/ChessBoard.xhtml?reportName=FX2-pipeline&parameters=[refJFXConfig]Prism/j2d fullspeed[JFXConfig]Prism/sw fullspeed

FXFire results:
 http://aurora.ru.oracle.com/performance/faces/ChessBoard.xhtml?reportName=FX2-pipeline&parameters=[refJFXConfig]Prism/j2d dirtyopts-off vsync-off[JFXConfig]Prism/sw dirtyopts-off vsync-off