If your pc is too slow or you have too many pairs running and AIMS box is slowing down your pc, one remedy is to go to the settings of AIMS box and change "LookBackBars" to 200 or 500. that should help. as in the pic below

Also reduce the "max bars in history" and "max bars in chart" settings from Options > Charts as in the pic below

If none of the above works... then use this classic AIMS box we used to call it AIMS Levels. This indicator will overlay other indicators if attached as the last item so make sure you attach this as the first item to your chart followed by other indicators that you use and save your template.
AIMS Levels v2.1 (Coded in 2009)