Starting with Virtual DJ 2023 build 7651 there has been new Auto BPM Transition feature added
This video shows what it is, and a few ways to use it

PLAESE NOTE: The auto-start option demo'ed from 11:21 to 12:35 may only work properly if you upgrade to the latest Early Access release at the time of this recording (build 7689)

The Digital DJ Tips video:
   • Pioneer DJ DDJ-REV5 Review - All New ...  

Scripts used:
auto_bpm_transition

auto_bpm_transition_options length 16 && auto_bpm_transition_options loop on && auto_bpm_transition_options stems vocal off && auto_bpm_transition_options stems instru off && auto_bpm_transition_options stems bass off && auto_bpm_transition

Music by:
Music by Rachel K Collier:    / @rachelkcollierrkc  

0:00 Intro
1:53 The basic auto_bpm_transition script
4:55 The auto_bpm_transition_options script
9:02 Using the ABT padpage