MANILA, Philippines — Filipino ace Miguel Tabuena slowed down with a three-under 67 yesterday, enabling local bet Taichi Kho to wrest a two-stroke lead after two rounds in the $1-million World City Championship in Hong Kong. Tabuena, whose red-hot 63 put him on top after Round 1, opened with a double bogey on No. 11 but recovered with six birdies against a lone bogey the rest of the way.