How to call different functipon in a model with different time intervals?

I am building a model where there are primarily three functions. I want to call two of these functions with different time intervals.One of these functions is called every 10ms but I want to calculate the time interval for the other two with increasing or decreasing value of a variable or by a graph. For example: If speed is my variable then if the speed increases, then specific functions should be called more often. Is there a simulink block or a synchronisaton function that can help me acheive this. As the model runs with different time intervals I want to trigger different inputs with different times. Thank you.