Why do other programs stop responding while transferring files with this application?

BurstCopy uses the hard-drive in an exclusive fashion (i.e. at its true potential) in order to attain maximum performance. This will usually cause other hard-drive intensive applications to start slower, and be less responsive when accessing the hard-drive.

This however can be easily remedied. The Idle Time setting has been implemented to counter just this undesired effect. It represents a period during which the application will pause itself in order to allow other programs exclusive hard-drive access. This goes to say that an Idle Time setting of 100 will cause the application to do nothing for 100 milliseconds (0.1 seconds) each second.