The Speed Dial might take some time to load depending on how much pages you put there. If you have lots pages in the Speed Dial (stash too), you can expect it to load slower than usual. I don't know how many pages you have there, but it could be the reason... Also, the browser itself may take time to respond each time you open it, depending on your hardware.
This would not be for general, desktop users. It would be to support operating in a kiosk mode or on a factory/production area where we want to browser to operate in a constant, predictable way.
Found the problem! With "Hardware Acceleration" set to On Google Maps appears incorrect.
If I disable "Hardware Acceleration" the site is shown correctly!
But is strange! until opera 22 (inclueded) no problem!
I don't know!!....