Loading slide show takes too long - want play to start earlier

Question

I made a long slideshow with perhaps 80 smallish (700x500) images. It is just a simple timeline with fade ins with varying durations for displaying the images. Most images are shown for a second or more. It takes quite a while to load sometimes. One is left looking at the preload gif - which makes a bad impression.
Is there any way I can code it such that it will start to play after say 10 images or fewer are loaded. There would be plenty of time I would think for the rest to load while the show is going on - even with a bad connection.
If I had control I could tweak till I found what I think is the best compromise. It would be preferable in the worst case for there to be pauses in the playback down the line rather than at the start.
I was thinking of splitting it into chunks and making a load url action once in a while for another gaggle of images. But that sounds a very poor solution at onset  - as if it would break up the action even if it was being viewed on a fast connection.
I am prepared start all over if there are any better strategies suggested
thanks

Answer 1

Have finally found a solution for this problem: http://serverfault.com/questions/490352 … w-to-start
Now the applications do start immediately via SSH X11 forwarding as expected.
The following three lines helped:
ip6tables -A INPUT -i lo -j ACCEPT
ip6tables -A OUTPUT -o lo -j ACCEPT
ip6tables -A FORWARD -i lo -o lo -j ACCEPT
While until now, all ip6 traffic has been forbidden (to drop all ip6 traffic) at the start of the system of course.
Nevertheless, I don't understand it, why the ip6 localhost has to be granted this way even if the /etc/ssh/sshd_config is configured for ip4 only "AddressFamily inet"?
I thought, that this way the sshd will be using ip4 protocol only (including for the X11 forwarding), then why does it still need the ip6?