My post above gives what I believe is the primary reason for the lag when playing your finished song.
On a laptop, your LCD display is slower than a CRT display. I expect the graphics display card is "minimized" for the LCD, and thus may not have the hardware acceleration that can be found on other PCI-bus plug-in graphics card. I am guessing here, based on other tradeoffs we have seen in laptops.
Once we upgrade the player code, I hope this will help you. We are nearing completion of the Microstudio 2.2 upgrade. Once this is done, we will split our player (audio and karaoke) software into a standard module we can then link into all our products. The first to get the upgrade will be KHProducer.
