In this issue, you need to change the increase the speed and autoDelay number like below code:
if ( $bSlider.length ) {
$bSlider.bxSlider({
mode: 'vertical',
speed: 2000,
auto: true,
autoDelay: 2000,
touchEnabled: false,
controls: false
});
}
After then, remove your browser cache to review the changes.
Best Regards,
ThemeLooks Support Team