I had the same problem using a QTableWidget in symbian, the speed performance was so much slower than desktop.
Right now I'm dont have my code at hand, but I think it was setSizeHint(), and a autoresize option. The table was filled with items in a for loop.I removed the autoresize option with a fixed value in the constructor, and it got better. But with large numbers like 200, I think it's still bad. Try removing setSizeHint() to see what happens.
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