If you want an object to be placed in the middle of a layout you can do this (see picture).
If 1 is too fast and 0.1 is too slow you might need to take a different approach than using "every tick".
If you make a global variable called "timer" and then add 1 to it every tick you can use that to change how often the calculations are triggered. So basically:
Every tick - Add 1 to "timer".
If "timer" = x (try different numbers to see what works for you) then set "timer" to 0 and also trigger the calculations once.
Hope that made sense.