Are you loading you page into opera fresh?
I notice that If i have your page open in opera when I close it, it is automatically loaded when I start Opera. this happens regardless of whether I clear private data or not.
Also, do you have Opera set in turbo mode? I noticed "Turbo" mode made everything slow down quite a bit. It's not really such a turbo setting.
Just for a bit of browser info:
According w3schools.com, the usage for the Opera browser is currently at 2.3%. All other browsers, including IE6 are more commonly used than Opera is. I think the majority of opera usage comes from 2 areas:
1) It is the browser used by the Nintendo Wii console.
2) Developers testing for cross browser support.
I would estimate that those 2 camps alone account for about 90% of Opera usage.
you can see the w3schools stats here: