You didn't say which script you loaded, but you need to check the parameters - one of them will set the interval between shots and another will set the otal number of shots. To do this:
1. go into <alt> mode (by pressing the print button)
2. select "scripting parameters"
You should now see a menu which has "Load script from file ..." at the top
scroll down the menu and below the dotted line you'll see a set of lines describing the parameters
3. select the one that sets the interval and use the left and right buttons to choose the interval you want
4. do the same with the "number of shots" parameter
Note that your camera may not be able to take shots as rapidly as every two seconds, particularly if you have
not set the Canon "Review" option "Off".