Games written by users slow and clunky?

Although It's true that games written entirely in Bally/Astro basic were prone to be slow and somewhat Clunky, Most of the companies selling programs quickly began to use Machine Language routines from the Built-in games to power there games. This type of hybrid programming produced good results with the limited space available in the unit. Others took to using complete Machine language coding for there games. By hiding the ML code at the bottom of the screen, by reducing the vertical resolution it was possible to have 4-8 colour near Cart Quality games on tape.