Are trigger volumes more efficient than Tick?

Like the title says, are trigger volumes more efficient than Tick? I ask this because i always want to find an alternative solution to tick. Would setting up a trigger
volume that as i enter it enables tick and when i leave it disables tick. Would that extra layer still be more efficient than just ticking constantly?

Timers may be what you are looking for if you are looking for something to run in human-definable time instead of how-fast-your-computer-is-definable time. You would start the timer when entering the volume and turning off the timer when leaving the volume (same basic concept as above, just using Timers instead of Tick).