Hsieh said all the effort was beginning to pay off, but he also cautioned against too much optimism, saying China "in my opinion has gone down in the last two years."
Japan, second to the US at the world championships, and possibly South Korea would provide stiffer tests, Hsieh said.
In rugby sevens, Taiwan amazed itself and everyone else.
Though it has a lot of experience through the Hong Kong sevens tournaments, Taiwan was not expected to do as well as it has so far at the Asian Games. The fact it won three games in a row yesterday was not as significant as the way it won.
First off, it whipped Hong Kong 29-0, scoring three tries in the first half and two in the second.
Just over two hours later it took on the might of Japan and order seemed to have been restored when Taiwan went into the half-time break trailing 5-7. But head coach Wu Mao-cheng stiffened his defense and Taiwan scored three unanswered tries and one conversion for a 22-7 victory.
"In the first game with Hong Kong the players were a bit nervous and did not perform so well, but in the second half we became more powerful," Wu said.
"Then, before the game against Japan we thought we would not win, but we had a look at them playing in another game and thought maybe they weren't so strong after all. I said `we stand a good chance here' and everyone agreed."
After that it was China's turn and Taiwan once again turned up the heat, crushing its rival with three tries to none, for a handsome 19-0 win.
"We felt very good at this stage," Wu said.
In basketball, Kazakhstan defeated Taiwan 86-75, but it can still advance further in the event after beating Qatar 71-61 the previous day.
The country's quest for its first medal at the Asian Games was frustrated, however, when Lee Hsiao-hung was beaten by China's Sun Fuming in judo.
In the fight for third place she was unable to wear down her Mongolian opponent Erdene Ochir Dolgormaa in the women's 78kg category.
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