TC-Helicon VoiceLive Touch 2 Reference Manual - Manual (Page 81)

The Setup menu
75
Global Tempo parameter
On setting (default)
When you set the Global Tempo parameter to On, all presets
adhere to the most recent Tap Tempo. This is so that Rhythm,
Delay and the Loop Metronome can all synchronize to the
same tempo as you change presets. Note that the Slap and
Set Time styles within the Delay block will remain at their own
settings.
Off setting
When you set the Global Tempo parameter to Off, the individ-
ual tempo for each preset is recognized as you change presets.