You will need to hack the js/main.js file for what you want to achieve-
1) Try to change the value of 2000 set as argument at line number 591 and see if that helps to increase or decrease the timing. Pls make sure you do refresh of the browser to reload the JS file changed.
2) Introduce a delay (http://api.jquery.com/delay/) in the script execution to achieve a pause. At least, that’s what I can think of at present.