If you’d like even better performance, I suggest you go into your browser and install the Web App. It should give you an Icon on the desktop when its installed and it will work better with the browser caching to present pages quickly.
We have a few more things to do to improve the site. We have not had the performance as a Priority as the site loads reasonably fast and we want to include more features. I will discuss your concern with Liam and see if we should set the performance higher on the priority list.