1. Increase Audio buffer size.
The DDJ-400, DDJ-SB3, DDJ-FLX6 that support WASAPI with standard Windows driver.
Change the Audio buffer size in rekordbox.
Open rekordbox > Preferences > Audio panel
Models with its own audio driver, increase ASIO buffer size from the setting utility.
Below is an example of the DDJ-1000 setting utility.
2. Turn off applications on Windows start up
Start Menu > Settings > Apps > Startup, turn off apps.
3. Turn the Wi-Fi off
Go to Start Menu > Settings > Network & Internet > Turn Wi-Fi OFF
4. Disconnect the Ethernet cable
Go to Start Menu > Settings > Network & Internet > As Ethernet does not appear, the connection is disabled.
5. Change Battery settings
Taskbar > Click " Battery "
" Battery settings " Panel opens
Move the slider to the right end and set to Best Performance.
5. Turn "Turbo Boost" off
5-1. Go to Start Menu > System > Power & sleep
Select "Additional power settings"
5-2. In Power Options panel, select” Change plan settings ”
5-3. In Edit Plan settings panel select " Change advanced power settings "
5-4. Open Power Options > Processor power management > Maximum processor state
Change " On battery: 100% " to " 75% "
Change " Plugged in: 100% " to " 75% "