Modern Standby, or Low Power S0 Idle state, also known as Connected Standby or InstantGo, is a power state that the system can very quickly switch from a low-power state (sleep) to high-power state (working).
V is shipped with Modern Standby enabled by default, which allows fast wake-up from sleep.
However, it also brings higher power consumption during sleep.
If you want to disable Modern Standby,
(1) go to BIOS/UEFI user interface
(2) Configuration -> System Performance Configuration -> LP S0 Capability -> Disable
(3) Save and exit, your device will restart