[AS3] Timer With Variable Tick

I have been trying to come up with a way to have a Timer of which I can modify the Tick time between executions. I have the tick amount as a variable but it seems like the Timer just evaluates that variable once at the start and then ignores it. I’ve tried adding and removing the EventListeners in between modifying the tick variable but that does not in any way affect the original Timer. For the project I am using this in I cannot simply have a second or third timer to enable with different variables seeing as I would need upwards of 30 of them to do it that way. Can anyone point me in the direction of a way to have a variably timed Timer?