PhP. 5.4 , memory 128 .. Joomla 3.3.4 . VM 2.9.9c
I have noticed that my site works very well.. But as I add to the cart it slows as I add additional products.
Product 1 instantly, 5 seconds later , product two takes 3 seconds and product 3 often takes 10 seconds.
They all end up in the cart and payments all work quite well. When I confirm the cart all goes well.
The site installs and opens on all browsers instantly. I just note this if there is a small loop somewhere.