Hi All
All operating systems run programs in the background to keep things running smoothly, however if it is only doing one job (Running Music Software) then most of the background tasks are not required.

In PC based keyboards, or PC systems dedicated to music production, all the background tasks and programs that are not required to produce music are turned off, and the OS optimised for the job in hand, (Any OS can be customised to specific tasks) consequently you don’t get any problems with the CPU spiking etc.

Hope this helps to put your minds at rest

Bill