My performance is poor. But I know my system requirement is enough to handle PowerDVD SE. Is there any suggestion to improve the performance?

Please make sure the DMA setting is enabled before running Power DVD SE. You may check this setting by following steps:
My computer on desktop (right click) --> Properties --> Device Manager double click on the Disc Drive --> Setting --> Enable DMA

Please be informed that if there is no DMA checkbox available on your system, either your motherboard does not support DMA or you may need new driver set to update your motherboard. To verify the type of motherboard, you may get the related information from the website of your motherboard manufacturer.

Caution: Before starting the above procedure, please notice that if your MotherBoard is Super 7 type (AMD CPU) or your CPU is K7 (Althon), then please visit your MotherBoard company web site to get IDE and AGP drivers to update, and then you can enable the DMA with no problem.